2080784080

素因数分解:

$2^4\times 5^1\times {\mathrm{421}}^1\times {\mathrm{61781}}^1$

素因数の和:62215

約数の個数: 40

約数和(自身を含む): 4849392744

約数和(自身を除く): 2768608664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 421, 842, 1684, 2105, 3368, 4210, 6736, 8420, 16840, 33680, 61781, 123562, 247124, 308905, 494248, 617810, 988496, 1235620, 2471240, 4942480, 26009801, 52019602, 104039204, 130049005, 208078408, 260098010, 416156816, 520196020, 1040392040, 2080784080]

約数ペア:

[(1, 2080784080), (2, 1040392040), (4, 520196020), (5, 416156816), (8, 260098010), (10, 208078408), (16, 130049005), (20, 104039204), (40, 52019602), (80, 26009801), (421, 4942480), (842, 2471240), (1684, 1235620), (2105, 988496), (3368, 617810), (4210, 494248), (6736, 308905), (8420, 247124), (16840, 123562), (33680, 61781)]