19888900

素因数分解:

$2^2\times 5^2\times {\mathrm{59}}^1\times {\mathrm{3371}}^1$

素因数の和:3444

約数の個数: 36

約数和(自身を含む): 43903440

約数和(自身を除く): 24014540

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 59, 100, 118, 236, 295, 590, 1180, 1475, 2950, 3371, 5900, 6742, 13484, 16855, 33710, 67420, 84275, 168550, 198889, 337100, 397778, 795556, 994445, 1988890, 3977780, 4972225, 9944450, 19888900]

約数ペア:

[(1, 19888900), (2, 9944450), (4, 4972225), (5, 3977780), (10, 1988890), (20, 994445), (25, 795556), (50, 397778), (59, 337100), (100, 198889), (118, 168550), (236, 84275), (295, 67420), (590, 33710), (1180, 16855), (1475, 13484), (2950, 6742), (3371, 5900)]