100686980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{122789}}^1$

素因数の和:122839

約数の個数: 24

約数和(自身を含む): 216601560

約数和(自身を除く): 115914580

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 122789, 245578, 491156, 613945, 1227890, 2455780, 5034349, 10068698, 20137396, 25171745, 50343490, 100686980]

約数ペア:

[(1, 100686980), (2, 50343490), (4, 25171745), (5, 20137396), (10, 10068698), (20, 5034349), (41, 2455780), (82, 1227890), (164, 613945), (205, 491156), (410, 245578), (820, 122789)]