20120681776

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{54869}}^1$

素因数の和:54974

約数の個数: 80

約数和(自身を含む): 44007495840

約数和(自身を除く): 23886814064

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 43, 52, 82, 86, 104, 164, 172, 208, 328, 344, 533, 559, 656, 688, 1066, 1118, 1763, 2132, 2236, 3526, 4264, 4472, 7052, 8528, 8944, 14104, 22919, 28208, 45838, 54869, 91676, 109738, 183352, 219476, 366704, 438952, 713297, 877904, 1426594, 2249629, 2359367, 2853188, 4499258, 4718734, 5706376, 8998516, 9437468, 11412752, 17997032, 18874936, 29245177, 30671771, 35994064, 37749872, 58490354, 61343542, 96734047, 116980708, 122687084, 193468094, 233961416, 245374168, 386936188, 467922832, 490748336, 773872376, 1257542611, 1547744752, 2515085222, 5030170444, 10060340888, 20120681776]

約数ペア:

[(1, 20120681776), (2, 10060340888), (4, 5030170444), (8, 2515085222), (13, 1547744752), (16, 1257542611), (26, 773872376), (41, 490748336), (43, 467922832), (52, 386936188), (82, 245374168), (86, 233961416), (104, 193468094), (164, 122687084), (172, 116980708), (208, 96734047), (328, 61343542), (344, 58490354), (533, 37749872), (559, 35994064), (656, 30671771), (688, 29245177), (1066, 18874936), (1118, 17997032), (1763, 11412752), (2132, 9437468), (2236, 8998516), (3526, 5706376), (4264, 4718734), (4472, 4499258), (7052, 2853188), (8528, 2359367), (8944, 2249629), (14104, 1426594), (22919, 877904), (28208, 713297), (45838, 438952), (54869, 366704), (91676, 219476), (109738, 183352)]