31288720

素因数分解:

$2^4\times 5^1\times {\mathrm{421}}^1\times {\mathrm{929}}^1$

素因数の和:1363

約数の個数: 40

約数和(自身を含む): 72997560

約数和(自身を除く): 41708840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 421, 842, 929, 1684, 1858, 2105, 3368, 3716, 4210, 4645, 6736, 7432, 8420, 9290, 14864, 16840, 18580, 33680, 37160, 74320, 391109, 782218, 1564436, 1955545, 3128872, 3911090, 6257744, 7822180, 15644360, 31288720]

約数ペア:

[(1, 31288720), (2, 15644360), (4, 7822180), (5, 6257744), (8, 3911090), (10, 3128872), (16, 1955545), (20, 1564436), (40, 782218), (80, 391109), (421, 74320), (842, 37160), (929, 33680), (1684, 18580), (1858, 16840), (2105, 14864), (3368, 9290), (3716, 8420), (4210, 7432), (4645, 6736)]