42720880

素因数分解:

$2^4\times 5^1\times {\mathrm{379}}^1\times {\mathrm{1409}}^1$

素因数の和:1801

約数の個数: 40

約数和(自身を含む): 99658800

約数和(自身を除く): 56937920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 379, 758, 1409, 1516, 1895, 2818, 3032, 3790, 5636, 6064, 7045, 7580, 11272, 14090, 15160, 22544, 28180, 30320, 56360, 112720, 534011, 1068022, 2136044, 2670055, 4272088, 5340110, 8544176, 10680220, 21360440, 42720880]

約数ペア:

[(1, 42720880), (2, 21360440), (4, 10680220), (5, 8544176), (8, 5340110), (10, 4272088), (16, 2670055), (20, 2136044), (40, 1068022), (80, 534011), (379, 112720), (758, 56360), (1409, 30320), (1516, 28180), (1895, 22544), (2818, 15160), (3032, 14090), (3790, 11272), (5636, 7580), (6064, 7045)]