203478340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{1607}}^1$

素因数の和:2116

約数の個数: 48

約数和(自身を含む): 461405952

約数和(自身を除く): 257927612

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 487, 974, 1607, 1948, 2435, 3214, 4870, 6331, 6428, 8035, 9740, 12662, 16070, 20891, 25324, 31655, 32140, 41782, 63310, 83564, 104455, 126620, 208910, 417820, 782609, 1565218, 3130436, 3913045, 7826090, 10173917, 15652180, 20347834, 40695668, 50869585, 101739170, 203478340]

約数ペア:

[(1, 203478340), (2, 101739170), (4, 50869585), (5, 40695668), (10, 20347834), (13, 15652180), (20, 10173917), (26, 7826090), (52, 3913045), (65, 3130436), (130, 1565218), (260, 782609), (487, 417820), (974, 208910), (1607, 126620), (1948, 104455), (2435, 83564), (3214, 63310), (4870, 41782), (6331, 32140), (6428, 31655), (8035, 25324), (9740, 20891), (12662, 16070)]