81356210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{607}}^1\times {\mathrm{1031}}^1$

素因数の和:1658

約数の個数: 32

約数和(自身を含む): 158118912

約数和(自身を除く): 76762702

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 607, 1031, 1214, 2062, 3035, 5155, 6070, 7891, 10310, 13403, 15782, 26806, 39455, 67015, 78910, 134030, 625817, 1251634, 3129085, 6258170, 8135621, 16271242, 40678105, 81356210]

約数ペア:

[(1, 81356210), (2, 40678105), (5, 16271242), (10, 8135621), (13, 6258170), (26, 3129085), (65, 1251634), (130, 625817), (607, 134030), (1031, 78910), (1214, 67015), (2062, 39455), (3035, 26806), (5155, 15782), (6070, 13403), (7891, 10310)]