18176840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{379}}^1$

素因数の和:510

約数の個数: 64

約数和(自身を含む): 45144000

約数和(自身を除く): 26967160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 109, 110, 218, 220, 379, 436, 440, 545, 758, 872, 1090, 1199, 1516, 1895, 2180, 2398, 3032, 3790, 4169, 4360, 4796, 5995, 7580, 8338, 9592, 11990, 15160, 16676, 20845, 23980, 33352, 41311, 41690, 47960, 82622, 83380, 165244, 166760, 206555, 330488, 413110, 454421, 826220, 908842, 1652440, 1817684, 2272105, 3635368, 4544210, 9088420, 18176840]

約数ペア:

[(1, 18176840), (2, 9088420), (4, 4544210), (5, 3635368), (8, 2272105), (10, 1817684), (11, 1652440), (20, 908842), (22, 826220), (40, 454421), (44, 413110), (55, 330488), (88, 206555), (109, 166760), (110, 165244), (218, 83380), (220, 82622), (379, 47960), (436, 41690), (440, 41311), (545, 33352), (758, 23980), (872, 20845), (1090, 16676), (1199, 15160), (1516, 11990), (1895, 9592), (2180, 8338), (2398, 7580), (3032, 5995), (3790, 4796), (4169, 4360)]