90825680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3559}}^1$

素因数の和:3612

約数の個数: 80

約数和(自身を含む): 238377600

約数和(自身を除く): 147551920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 40, 44, 55, 58, 80, 88, 110, 116, 145, 176, 220, 232, 290, 319, 440, 464, 580, 638, 880, 1160, 1276, 1595, 2320, 2552, 3190, 3559, 5104, 6380, 7118, 12760, 14236, 17795, 25520, 28472, 35590, 39149, 56944, 71180, 78298, 103211, 142360, 156596, 195745, 206422, 284720, 313192, 391490, 412844, 516055, 626384, 782980, 825688, 1032110, 1135321, 1565960, 1651376, 2064220, 2270642, 3131920, 4128440, 4541284, 5676605, 8256880, 9082568, 11353210, 18165136, 22706420, 45412840, 90825680]

約数ペア:

[(1, 90825680), (2, 45412840), (4, 22706420), (5, 18165136), (8, 11353210), (10, 9082568), (11, 8256880), (16, 5676605), (20, 4541284), (22, 4128440), (29, 3131920), (40, 2270642), (44, 2064220), (55, 1651376), (58, 1565960), (80, 1135321), (88, 1032110), (110, 825688), (116, 782980), (145, 626384), (176, 516055), (220, 412844), (232, 391490), (290, 313192), (319, 284720), (440, 206422), (464, 195745), (580, 156596), (638, 142360), (880, 103211), (1160, 78298), (1276, 71180), (1595, 56944), (2320, 39149), (2552, 35590), (3190, 28472), (3559, 25520), (5104, 17795), (6380, 14236), (7118, 12760)]