17986700

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^2\times {\mathrm{107}}^1$

素因数の和:203

約数の個数: 54

約数和(自身を含む): 40380228

約数和(自身を除く): 22393528

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 107, 164, 205, 214, 410, 428, 535, 820, 1025, 1070, 1681, 2050, 2140, 2675, 3362, 4100, 4387, 5350, 6724, 8405, 8774, 10700, 16810, 17548, 21935, 33620, 42025, 43870, 84050, 87740, 109675, 168100, 179867, 219350, 359734, 438700, 719468, 899335, 1798670, 3597340, 4496675, 8993350, 17986700]

約数ペア:

[(1, 17986700), (2, 8993350), (4, 4496675), (5, 3597340), (10, 1798670), (20, 899335), (25, 719468), (41, 438700), (50, 359734), (82, 219350), (100, 179867), (107, 168100), (164, 109675), (205, 87740), (214, 84050), (410, 43870), (428, 42025), (535, 33620), (820, 21935), (1025, 17548), (1070, 16810), (1681, 10700), (2050, 8774), (2140, 8405), (2675, 6724), (3362, 5350), (4100, 4387)]