42756760

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{2539}}^1$

素因数の和:2971

約数の個数: 32

約数和(自身を含む): 96469200

約数和(自身を除く): 53712440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 2539, 3368, 4210, 5078, 8420, 10156, 12695, 16840, 20312, 25390, 50780, 101560, 1068919, 2137838, 4275676, 5344595, 8551352, 10689190, 21378380, 42756760]

約数ペア:

[(1, 42756760), (2, 21378380), (4, 10689190), (5, 8551352), (8, 5344595), (10, 4275676), (20, 2137838), (40, 1068919), (421, 101560), (842, 50780), (1684, 25390), (2105, 20312), (2539, 16840), (3368, 12695), (4210, 10156), (5078, 8420)]