1161640

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{257}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 2647080

約数和(自身を除く): 1485440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 257, 452, 514, 565, 904, 1028, 1130, 1285, 2056, 2260, 2570, 4520, 5140, 10280, 29041, 58082, 116164, 145205, 232328, 290410, 580820, 1161640]

約数ペア:

[(1, 1161640), (2, 580820), (4, 290410), (5, 232328), (8, 145205), (10, 116164), (20, 58082), (40, 29041), (113, 10280), (226, 5140), (257, 4520), (452, 2570), (514, 2260), (565, 2056), (904, 1285), (1028, 1130)]