64213580

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{24509}}^1$

素因数の和:24649

約数の個数: 24

約数和(自身を含む): 135883440

約数和(自身を除く): 71669860

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 24509, 49018, 98036, 122545, 245090, 490180, 3210679, 6421358, 12842716, 16053395, 32106790, 64213580]

約数ペア:

[(1, 64213580), (2, 32106790), (4, 16053395), (5, 12842716), (10, 6421358), (20, 3210679), (131, 490180), (262, 245090), (524, 122545), (655, 98036), (1310, 49018), (2620, 24509)]