31375280

素因数分解:

$2^4\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2267}}^1$

素因数の和:2453

約数の個数: 40

約数和(自身を含む): 73401552

約数和(自身を除く): 42026272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 173, 346, 692, 865, 1384, 1730, 2267, 2768, 3460, 4534, 6920, 9068, 11335, 13840, 18136, 22670, 36272, 45340, 90680, 181360, 392191, 784382, 1568764, 1960955, 3137528, 3921910, 6275056, 7843820, 15687640, 31375280]

約数ペア:

[(1, 31375280), (2, 15687640), (4, 7843820), (5, 6275056), (8, 3921910), (10, 3137528), (16, 1960955), (20, 1568764), (40, 784382), (80, 392191), (173, 181360), (346, 90680), (692, 45340), (865, 36272), (1384, 22670), (1730, 18136), (2267, 13840), (2768, 11335), (3460, 9068), (4534, 6920)]