51218960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2897}}^1$

素因数の和:2940

約数の個数: 80

約数和(自身を含む): 135835056

約数和(自身を除く): 84616096

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1105, 1360, 1768, 2210, 2897, 3536, 4420, 5794, 8840, 11588, 14485, 17680, 23176, 28970, 37661, 46352, 49249, 57940, 75322, 98498, 115880, 150644, 188305, 196996, 231760, 246245, 301288, 376610, 393992, 492490, 602576, 640237, 753220, 787984, 984980, 1280474, 1506440, 1969960, 2560948, 3012880, 3201185, 3939920, 5121896, 6402370, 10243792, 12804740, 25609480, 51218960]

約数ペア:

[(1, 51218960), (2, 25609480), (4, 12804740), (5, 10243792), (8, 6402370), (10, 5121896), (13, 3939920), (16, 3201185), (17, 3012880), (20, 2560948), (26, 1969960), (34, 1506440), (40, 1280474), (52, 984980), (65, 787984), (68, 753220), (80, 640237), (85, 602576), (104, 492490), (130, 393992), (136, 376610), (170, 301288), (208, 246245), (221, 231760), (260, 196996), (272, 188305), (340, 150644), (442, 115880), (520, 98498), (680, 75322), (884, 57940), (1040, 49249), (1105, 46352), (1360, 37661), (1768, 28970), (2210, 23176), (2897, 17680), (3536, 14485), (4420, 11588), (5794, 8840)]