331364890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1\times {\mathrm{2539}}^1$

素因数の和:2998

約数の個数: 32

約数和(自身を含む): 617402880

約数和(自身を除く): 286037990

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 421, 842, 2105, 2539, 4210, 5078, 12695, 13051, 25390, 26102, 65255, 78709, 130510, 157418, 393545, 787090, 1068919, 2137838, 5344595, 10689190, 33136489, 66272978, 165682445, 331364890]

約数ペア:

[(1, 331364890), (2, 165682445), (5, 66272978), (10, 33136489), (31, 10689190), (62, 5344595), (155, 2137838), (310, 1068919), (421, 787090), (842, 393545), (2105, 157418), (2539, 130510), (4210, 78709), (5078, 65255), (12695, 26102), (13051, 25390)]