19406920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37321}}^1$

素因数の和:37345

約数の個数: 32

約数和(自身を含む): 47025720

約数和(自身を除く): 27618800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 37321, 74642, 149284, 186605, 298568, 373210, 485173, 746420, 970346, 1492840, 1940692, 2425865, 3881384, 4851730, 9703460, 19406920]

約数ペア:

[(1, 19406920), (2, 9703460), (4, 4851730), (5, 3881384), (8, 2425865), (10, 1940692), (13, 1492840), (20, 970346), (26, 746420), (40, 485173), (52, 373210), (65, 298568), (104, 186605), (130, 149284), (260, 74642), (520, 37321)]