79977820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{2213}}^1$

素因数の和:2374

約数の個数: 48

約数和(自身を含む): 182256480

約数和(自身を除く): 102278660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 260, 278, 556, 695, 1390, 1807, 2213, 2780, 3614, 4426, 7228, 8852, 9035, 11065, 18070, 22130, 28769, 36140, 44260, 57538, 115076, 143845, 287690, 307607, 575380, 615214, 1230428, 1538035, 3076070, 3998891, 6152140, 7997782, 15995564, 19994455, 39988910, 79977820]

約数ペア:

[(1, 79977820), (2, 39988910), (4, 19994455), (5, 15995564), (10, 7997782), (13, 6152140), (20, 3998891), (26, 3076070), (52, 1538035), (65, 1230428), (130, 615214), (139, 575380), (260, 307607), (278, 287690), (556, 143845), (695, 115076), (1390, 57538), (1807, 44260), (2213, 36140), (2780, 28769), (3614, 22130), (4426, 18070), (7228, 11065), (8852, 9035)]