17944900

素因数分解:

$2^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{1291}}^1$

素因数の和:1444

約数の個数: 36

約数和(自身を含む): 39250960

約数和(自身を除く): 21306060

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 139, 278, 556, 695, 1291, 1390, 2582, 2780, 3475, 5164, 6455, 6950, 12910, 13900, 25820, 32275, 64550, 129100, 179449, 358898, 717796, 897245, 1794490, 3588980, 4486225, 8972450, 17944900]

約数ペア:

[(1, 17944900), (2, 8972450), (4, 4486225), (5, 3588980), (10, 1794490), (20, 897245), (25, 717796), (50, 358898), (100, 179449), (139, 129100), (278, 64550), (556, 32275), (695, 25820), (1291, 13900), (1390, 12910), (2582, 6950), (2780, 6455), (3475, 5164)]