210698540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{810379}}^1$

素因数の和:810401

約数の個数: 24

約数和(自身を含む): 476503440

約数和(自身を除く): 265804900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 810379, 1620758, 3241516, 4051895, 8103790, 10534927, 16207580, 21069854, 42139708, 52674635, 105349270, 210698540]

約数ペア:

[(1, 210698540), (2, 105349270), (4, 52674635), (5, 42139708), (10, 21069854), (13, 16207580), (20, 10534927), (26, 8103790), (52, 4051895), (65, 3241516), (130, 1620758), (260, 810379)]