18026900

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{2539}}^1$

素因数の和:2624

約数の個数: 36

約数和(自身を含む): 39684960

約数和(自身を除く): 21658060

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 355, 710, 1420, 1775, 2539, 3550, 5078, 7100, 10156, 12695, 25390, 50780, 63475, 126950, 180269, 253900, 360538, 721076, 901345, 1802690, 3605380, 4506725, 9013450, 18026900]

約数ペア:

[(1, 18026900), (2, 9013450), (4, 4506725), (5, 3605380), (10, 1802690), (20, 901345), (25, 721076), (50, 360538), (71, 253900), (100, 180269), (142, 126950), (284, 63475), (355, 50780), (710, 25390), (1420, 12695), (1775, 10156), (2539, 7100), (3550, 5078)]