1989312160

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:196

約数の個数: 288

約数和(自身を含む): 5640897024

約数和(自身を除く): 3651584864

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 31, 32, 38, 40, 44, 55, 62, 76, 80, 88, 95, 101, 110, 124, 152, 155, 160, 176, 190, 202, 209, 220, 248, 304, 310, 341, 352, 361, 380, 404, 418, 440, 496, 505, 589, 608, 620, 682, 722, 760, 808, 836, 880, 992, 1010, 1045, 1111, 1178, 1240, 1364, 1444, 1520, 1616, 1672, 1705, 1760, 1805, 1919, 2020, 2090, 2222, 2356, 2480, 2728, 2888, 2945, 3040, 3131, 3232, 3344, 3410, 3610, 3838, 3971, 4040, 4180, 4444, 4712, 4960, 5456, 5555, 5776, 5890, 6262, 6479, 6688, 6820, 7220, 7676, 7942, 8080, 8360, 8888, 9424, 9595, 10912, 11110, 11191, 11552, 11780, 12524, 12958, 13640, 14440, 15352, 15655, 15884, 16160, 16720, 17776, 18848, 19190, 19855, 21109, 22220, 22382, 23560, 25048, 25916, 27280, 28880, 30704, 31310, 31768, 32395, 33440, 34441, 35552, 36461, 38380, 39710, 42218, 44440, 44764, 47120, 50096, 51832, 54560, 55955, 57760, 59489, 61408, 62620, 63536, 64790, 68882, 72922, 76760, 79420, 84436, 88880, 89528, 94240, 100192, 103664, 105545, 111910, 118978, 123101, 125240, 127072, 129580, 137764, 145844, 153520, 158840, 168872, 172205, 177760, 179056, 182305, 207328, 211090, 223820, 237956, 246202, 250480, 259160, 275528, 291688, 297445, 307040, 317680, 337744, 344410, 358112, 364610, 401071, 422180, 447640, 475912, 492404, 500960, 518320, 551056, 583376, 594890, 615505, 635360, 654379, 675488, 688820, 729220, 802142, 844360, 895280, 951824, 984808, 1036640, 1102112, 1130291, 1166752, 1189780, 1231010, 1308758, 1377640, 1458440, 1604284, 1688720, 1790560, 1903648, 1969616, 2005355, 2260582, 2379560, 2462020, 2617516, 2755280, 2916880, 3208568, 3271895, 3377440, 3939232, 4010710, 4521164, 4759120, 4924040, 5235032, 5510560, 5651455, 5833760, 6417136, 6543790, 8021420, 9042328, 9518240, 9848080, 10470064, 11302910, 12433201, 12834272, 13087580, 16042840, 18084656, 19696160, 20940128, 22605820, 24866402, 26175160, 32085680, 36169312, 45211640, 49732804, 52350320, 62166005, 64171360, 90423280, 99465608, 104700640, 124332010, 180846560, 198931216, 248664020, 397862432, 497328040, 994656080, 1989312160]

約数ペア:

[(1, 1989312160), (2, 994656080), (4, 497328040), (5, 397862432), (8, 248664020), (10, 198931216), (11, 180846560), (16, 124332010), (19, 104700640), (20, 99465608), (22, 90423280), (31, 64171360), (32, 62166005), (38, 52350320), (40, 49732804), (44, 45211640), (55, 36169312), (62, 32085680), (76, 26175160), (80, 24866402), (88, 22605820), (95, 20940128), (101, 19696160), (110, 18084656), (124, 16042840), (152, 13087580), (155, 12834272), (160, 12433201), (176, 11302910), (190, 10470064), (202, 9848080), (209, 9518240), (220, 9042328), (248, 8021420), (304, 6543790), (310, 6417136), (341, 5833760), (352, 5651455), (361, 5510560), (380, 5235032), (404, 4924040), (418, 4759120), (440, 4521164), (496, 4010710), (505, 3939232), (589, 3377440), (608, 3271895), (620, 3208568), (682, 2916880), (722, 2755280), (760, 2617516), (808, 2462020), (836, 2379560), (880, 2260582), (992, 2005355), (1010, 1969616), (1045, 1903648), (1111, 1790560), (1178, 1688720), (1240, 1604284), (1364, 1458440), (1444, 1377640), (1520, 1308758), (1616, 1231010), (1672, 1189780), (1705, 1166752), (1760, 1130291), (1805, 1102112), (1919, 1036640), (2020, 984808), (2090, 951824), (2222, 895280), (2356, 844360), (2480, 802142), (2728, 729220), (2888, 688820), (2945, 675488), (3040, 654379), (3131, 635360), (3232, 615505), (3344, 594890), (3410, 583376), (3610, 551056), (3838, 518320), (3971, 500960), (4040, 492404), (4180, 475912), (4444, 447640), (4712, 422180), (4960, 401071), (5456, 364610), (5555, 358112), (5776, 344410), (5890, 337744), (6262, 317680), (6479, 307040), (6688, 297445), (6820, 291688), (7220, 275528), (7676, 259160), (7942, 250480), (8080, 246202), (8360, 237956), (8888, 223820), (9424, 211090), (9595, 207328), (10912, 182305), (11110, 179056), (11191, 177760), (11552, 172205), (11780, 168872), (12524, 158840), (12958, 153520), (13640, 145844), (14440, 137764), (15352, 129580), (15655, 127072), (15884, 125240), (16160, 123101), (16720, 118978), (17776, 111910), (18848, 105545), (19190, 103664), (19855, 100192), (21109, 94240), (22220, 89528), (22382, 88880), (23560, 84436), (25048, 79420), (25916, 76760), (27280, 72922), (28880, 68882), (30704, 64790), (31310, 63536), (31768, 62620), (32395, 61408), (33440, 59489), (34441, 57760), (35552, 55955), (36461, 54560), (38380, 51832), (39710, 50096), (42218, 47120), (44440, 44764)]