639621710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{702881}}^1$

素因数の和:702908

約数の個数: 32

約数和(自身を含む): 1417010112

約数和(自身を除く): 777388402

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 702881, 1405762, 3514405, 4920167, 7028810, 9137453, 9840334, 18274906, 24600835, 45687265, 49201670, 63962171, 91374530, 127924342, 319810855, 639621710]

約数ペア:

[(1, 639621710), (2, 319810855), (5, 127924342), (7, 91374530), (10, 63962171), (13, 49201670), (14, 45687265), (26, 24600835), (35, 18274906), (65, 9840334), (70, 9137453), (91, 7028810), (130, 4920167), (182, 3514405), (455, 1405762), (910, 702881)]