20456930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4253}}^1$

素因数の和:4310

約数の個数: 32

約数和(自身を含む): 40736304

約数和(自身を除く): 20279374

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 4253, 4810, 8506, 21265, 42530, 55289, 110578, 157361, 276445, 314722, 552890, 786805, 1573610, 2045693, 4091386, 10228465, 20456930]

約数ペア:

[(1, 20456930), (2, 10228465), (5, 4091386), (10, 2045693), (13, 1573610), (26, 786805), (37, 552890), (65, 314722), (74, 276445), (130, 157361), (185, 110578), (370, 55289), (481, 42530), (962, 21265), (2405, 8506), (4253, 4810)]