31918240

素因数分解:

$2^5\times 5^1\times {\mathrm{199489}}^1$

素因数の和:199504

約数の個数: 24

約数和(自身を含む): 75407220

約数和(自身を除く): 43488980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 199489, 398978, 797956, 997445, 1595912, 1994890, 3191824, 3989780, 6383648, 7979560, 15959120, 31918240]

約数ペア:

[(1, 31918240), (2, 15959120), (4, 7979560), (5, 6383648), (8, 3989780), (10, 3191824), (16, 1994890), (20, 1595912), (32, 997445), (40, 797956), (80, 398978), (160, 199489)]