397789480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{904067}}^1$

素因数の和:904089

約数の個数: 32

約数和(自身を含む): 976393440

約数和(自身を除く): 578603960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 904067, 1808134, 3616268, 4520335, 7232536, 9040670, 9944737, 18081340, 19889474, 36162680, 39778948, 49723685, 79557896, 99447370, 198894740, 397789480]

約数ペア:

[(1, 397789480), (2, 198894740), (4, 99447370), (5, 79557896), (8, 49723685), (10, 39778948), (11, 36162680), (20, 19889474), (22, 18081340), (40, 9944737), (44, 9040670), (55, 7232536), (88, 4520335), (110, 3616268), (220, 1808134), (440, 904067)]