20457710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{22481}}^1$

素因数の和:22508

約数の個数: 32

約数和(自身を含む): 45323712

約数和(自身を除く): 24866002

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 22481, 44962, 112405, 157367, 224810, 292253, 314734, 584506, 786835, 1461265, 1573670, 2045771, 2922530, 4091542, 10228855, 20457710]

約数ペア:

[(1, 20457710), (2, 10228855), (5, 4091542), (7, 2922530), (10, 2045771), (13, 1573670), (14, 1461265), (26, 786835), (35, 584506), (65, 314734), (70, 292253), (91, 224810), (130, 157367), (182, 112405), (455, 44962), (910, 22481)]