639550730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{702803}}^1$

素因数の和:702830

約数の個数: 32

約数和(自身を含む): 1416852864

約数和(自身を除く): 777302134

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 702803, 1405606, 3514015, 4919621, 7028030, 9136439, 9839242, 18272878, 24598105, 45682195, 49196210, 63955073, 91364390, 127910146, 319775365, 639550730]

約数ペア:

[(1, 639550730), (2, 319775365), (5, 127910146), (7, 91364390), (10, 63955073), (13, 49196210), (14, 45682195), (26, 24598105), (35, 18272878), (65, 9839242), (70, 9136439), (91, 7028030), (130, 4919621), (182, 3514015), (455, 1405606), (910, 702803)]