20972471168

素因数分解:

$2^7\times {\mathrm{11}}^4\times {\mathrm{19}}^2\times {\mathrm{31}}^1$

素因数の和:127

約数の個数: 240

約数和(自身を含む): 50069800800

約数和(自身を除く): 29097329632

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 31, 32, 38, 44, 62, 64, 76, 88, 121, 124, 128, 152, 176, 209, 242, 248, 304, 341, 352, 361, 418, 484, 496, 589, 608, 682, 704, 722, 836, 968, 992, 1178, 1216, 1331, 1364, 1408, 1444, 1672, 1936, 1984, 2299, 2356, 2432, 2662, 2728, 2888, 3344, 3751, 3872, 3968, 3971, 4598, 4712, 5324, 5456, 5776, 6479, 6688, 7502, 7744, 7942, 9196, 9424, 10648, 10912, 11191, 11552, 12958, 13376, 14641, 15004, 15488, 15884, 18392, 18848, 21296, 21824, 22382, 23104, 25289, 25916, 26752, 29282, 30008, 31768, 36784, 37696, 41261, 42592, 43648, 43681, 44764, 46208, 50578, 51832, 58564, 60016, 63536, 71269, 73568, 75392, 82522, 85184, 87362, 89528, 101156, 103664, 117128, 120032, 123101, 127072, 142538, 147136, 165044, 170368, 174724, 179056, 202312, 207328, 234256, 240064, 246202, 254144, 278179, 285076, 294272, 330088, 349448, 358112, 404624, 414656, 453871, 468512, 480128, 480491, 492404, 508288, 556358, 570152, 660176, 698896, 716224, 783959, 809248, 829312, 907742, 937024, 960982, 984808, 1112716, 1140304, 1320352, 1354111, 1397792, 1432448, 1567918, 1618496, 1815484, 1874048, 1921964, 1969616, 2225432, 2280608, 2640704, 2708222, 2795584, 3135836, 3236992, 3630968, 3843928, 3939232, 4450864, 4561216, 5281408, 5285401, 5416444, 5591168, 6271672, 7261936, 7687856, 7878464, 8623549, 8901728, 9122432, 10570802, 10832888, 12543344, 14523872, 14895221, 15375712, 15756928, 17247098, 17803456, 21141604, 21665776, 25086688, 29047744, 29790442, 30751424, 34494196, 35606912, 42283208, 43331552, 50173376, 58095488, 59580884, 61502848, 68988392, 84566416, 86663104, 100346752, 119161768, 137976784, 163847431, 169132832, 173326208, 238323536, 275953568, 327694862, 338265664, 476647072, 551907136, 655389724, 676531328, 953294144, 1103814272, 1310779448, 1906588288, 2621558896, 5243117792, 10486235584, 20972471168]

約数ペア:

[(1, 20972471168), (2, 10486235584), (4, 5243117792), (8, 2621558896), (11, 1906588288), (16, 1310779448), (19, 1103814272), (22, 953294144), (31, 676531328), (32, 655389724), (38, 551907136), (44, 476647072), (62, 338265664), (64, 327694862), (76, 275953568), (88, 238323536), (121, 173326208), (124, 169132832), (128, 163847431), (152, 137976784), (176, 119161768), (209, 100346752), (242, 86663104), (248, 84566416), (304, 68988392), (341, 61502848), (352, 59580884), (361, 58095488), (418, 50173376), (484, 43331552), (496, 42283208), (589, 35606912), (608, 34494196), (682, 30751424), (704, 29790442), (722, 29047744), (836, 25086688), (968, 21665776), (992, 21141604), (1178, 17803456), (1216, 17247098), (1331, 15756928), (1364, 15375712), (1408, 14895221), (1444, 14523872), (1672, 12543344), (1936, 10832888), (1984, 10570802), (2299, 9122432), (2356, 8901728), (2432, 8623549), (2662, 7878464), (2728, 7687856), (2888, 7261936), (3344, 6271672), (3751, 5591168), (3872, 5416444), (3968, 5285401), (3971, 5281408), (4598, 4561216), (4712, 4450864), (5324, 3939232), (5456, 3843928), (5776, 3630968), (6479, 3236992), (6688, 3135836), (7502, 2795584), (7744, 2708222), (7942, 2640704), (9196, 2280608), (9424, 2225432), (10648, 1969616), (10912, 1921964), (11191, 1874048), (11552, 1815484), (12958, 1618496), (13376, 1567918), (14641, 1432448), (15004, 1397792), (15488, 1354111), (15884, 1320352), (18392, 1140304), (18848, 1112716), (21296, 984808), (21824, 960982), (22382, 937024), (23104, 907742), (25289, 829312), (25916, 809248), (26752, 783959), (29282, 716224), (30008, 698896), (31768, 660176), (36784, 570152), (37696, 556358), (41261, 508288), (42592, 492404), (43648, 480491), (43681, 480128), (44764, 468512), (46208, 453871), (50578, 414656), (51832, 404624), (58564, 358112), (60016, 349448), (63536, 330088), (71269, 294272), (73568, 285076), (75392, 278179), (82522, 254144), (85184, 246202), (87362, 240064), (89528, 234256), (101156, 207328), (103664, 202312), (117128, 179056), (120032, 174724), (123101, 170368), (127072, 165044), (142538, 147136)]