80417960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{5419}}^1$

素因数の和:5490

約数の個数: 64

約数和(自身を含む): 210729600

約数和(自身を除く): 130311640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 53, 56, 70, 106, 140, 212, 265, 280, 371, 424, 530, 742, 1060, 1484, 1855, 2120, 2968, 3710, 5419, 7420, 10838, 14840, 21676, 27095, 37933, 43352, 54190, 75866, 108380, 151732, 189665, 216760, 287207, 303464, 379330, 574414, 758660, 1148828, 1436035, 1517320, 2010449, 2297656, 2872070, 4020898, 5744140, 8041796, 10052245, 11488280, 16083592, 20104490, 40208980, 80417960]

約数ペア:

[(1, 80417960), (2, 40208980), (4, 20104490), (5, 16083592), (7, 11488280), (8, 10052245), (10, 8041796), (14, 5744140), (20, 4020898), (28, 2872070), (35, 2297656), (40, 2010449), (53, 1517320), (56, 1436035), (70, 1148828), (106, 758660), (140, 574414), (212, 379330), (265, 303464), (280, 287207), (371, 216760), (424, 189665), (530, 151732), (742, 108380), (1060, 75866), (1484, 54190), (1855, 43352), (2120, 37933), (2968, 27095), (3710, 21676), (5419, 14840), (7420, 10838)]