20010428240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1$

素因数の和:442

約数の個数: 240

約数和(自身を含む): 52436643840

約数和(自身を除く): 32426215600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 79, 80, 88, 110, 121, 137, 158, 176, 191, 220, 242, 274, 316, 382, 395, 440, 484, 548, 605, 632, 685, 764, 790, 869, 880, 955, 968, 1096, 1210, 1264, 1370, 1507, 1528, 1580, 1738, 1910, 1936, 2101, 2192, 2420, 2740, 3014, 3056, 3160, 3476, 3820, 4202, 4345, 4840, 5480, 6028, 6320, 6952, 7535, 7640, 8404, 8690, 9559, 9680, 10505, 10823, 10960, 12056, 13904, 15070, 15089, 15280, 16577, 16808, 17380, 19118, 21010, 21646, 23111, 24112, 26167, 30140, 30178, 33154, 33616, 34760, 38236, 42020, 43292, 46222, 47795, 52334, 54115, 60280, 60356, 66308, 69520, 75445, 76472, 82885, 84040, 86584, 92444, 95590, 104668, 108230, 115555, 119053, 120560, 120712, 130835, 132616, 150890, 152944, 165770, 165979, 168080, 173168, 184888, 191180, 209336, 216460, 231110, 238106, 241424, 261670, 265232, 287837, 301780, 331540, 331958, 369776, 382360, 418672, 432920, 462220, 476212, 523340, 575674, 595265, 603560, 663080, 663916, 764720, 829895, 865840, 924440, 952424, 1046680, 1151348, 1190530, 1207120, 1309583, 1326160, 1327832, 1439185, 1659790, 1825769, 1848880, 1904848, 2067193, 2093360, 2302696, 2381060, 2619166, 2655664, 2878370, 3166207, 3319580, 3651538, 4134386, 4605392, 4762120, 5238332, 5756740, 6332414, 6547915, 6639160, 7303076, 8268772, 9128845, 9524240, 10335965, 10476664, 11513480, 12664828, 13095830, 13278320, 14606152, 15831035, 16537544, 18257690, 20671930, 20953328, 22739123, 23026960, 25329656, 26191660, 29212304, 31662070, 33075088, 36515380, 41343860, 45478246, 50659312, 52383320, 63324140, 73030760, 82687720, 90956492, 104766640, 113695615, 126648280, 146061520, 165375440, 181912984, 227391230, 250130353, 253296560, 363825968, 454782460, 500260706, 909564920, 1000521412, 1250651765, 1819129840, 2001042824, 2501303530, 4002085648, 5002607060, 10005214120, 20010428240]

約数ペア:

[(1, 20010428240), (2, 10005214120), (4, 5002607060), (5, 4002085648), (8, 2501303530), (10, 2001042824), (11, 1819129840), (16, 1250651765), (20, 1000521412), (22, 909564920), (40, 500260706), (44, 454782460), (55, 363825968), (79, 253296560), (80, 250130353), (88, 227391230), (110, 181912984), (121, 165375440), (137, 146061520), (158, 126648280), (176, 113695615), (191, 104766640), (220, 90956492), (242, 82687720), (274, 73030760), (316, 63324140), (382, 52383320), (395, 50659312), (440, 45478246), (484, 41343860), (548, 36515380), (605, 33075088), (632, 31662070), (685, 29212304), (764, 26191660), (790, 25329656), (869, 23026960), (880, 22739123), (955, 20953328), (968, 20671930), (1096, 18257690), (1210, 16537544), (1264, 15831035), (1370, 14606152), (1507, 13278320), (1528, 13095830), (1580, 12664828), (1738, 11513480), (1910, 10476664), (1936, 10335965), (2101, 9524240), (2192, 9128845), (2420, 8268772), (2740, 7303076), (3014, 6639160), (3056, 6547915), (3160, 6332414), (3476, 5756740), (3820, 5238332), (4202, 4762120), (4345, 4605392), (4840, 4134386), (5480, 3651538), (6028, 3319580), (6320, 3166207), (6952, 2878370), (7535, 2655664), (7640, 2619166), (8404, 2381060), (8690, 2302696), (9559, 2093360), (9680, 2067193), (10505, 1904848), (10823, 1848880), (10960, 1825769), (12056, 1659790), (13904, 1439185), (15070, 1327832), (15089, 1326160), (15280, 1309583), (16577, 1207120), (16808, 1190530), (17380, 1151348), (19118, 1046680), (21010, 952424), (21646, 924440), (23111, 865840), (24112, 829895), (26167, 764720), (30140, 663916), (30178, 663080), (33154, 603560), (33616, 595265), (34760, 575674), (38236, 523340), (42020, 476212), (43292, 462220), (46222, 432920), (47795, 418672), (52334, 382360), (54115, 369776), (60280, 331958), (60356, 331540), (66308, 301780), (69520, 287837), (75445, 265232), (76472, 261670), (82885, 241424), (84040, 238106), (86584, 231110), (92444, 216460), (95590, 209336), (104668, 191180), (108230, 184888), (115555, 173168), (119053, 168080), (120560, 165979), (120712, 165770), (130835, 152944), (132616, 150890)]