166631800

素因数分解:

$2^3\times 5^2\times {\mathrm{421}}^1\times {\mathrm{1979}}^1$

素因数の和:2416

約数の個数: 48

約数和(自身を含む): 388535400

約数和(自身を除く): 221903600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 421, 842, 1684, 1979, 2105, 3368, 3958, 4210, 7916, 8420, 9895, 10525, 15832, 16840, 19790, 21050, 39580, 42100, 49475, 79160, 84200, 98950, 197900, 395800, 833159, 1666318, 3332636, 4165795, 6665272, 8331590, 16663180, 20828975, 33326360, 41657950, 83315900, 166631800]

約数ペア:

[(1, 166631800), (2, 83315900), (4, 41657950), (5, 33326360), (8, 20828975), (10, 16663180), (20, 8331590), (25, 6665272), (40, 4165795), (50, 3332636), (100, 1666318), (200, 833159), (421, 395800), (842, 197900), (1684, 98950), (1979, 84200), (2105, 79160), (3368, 49475), (3958, 42100), (4210, 39580), (7916, 21050), (8420, 19790), (9895, 16840), (10525, 15832)]