20698730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1789}}^1$

素因数の和:1898

約数の個数: 32

約数和(自身を含む): 40597200

約数和(自身を除く): 19898470

約数列:

[1, 2, 5, 10, 13, 26, 65, 89, 130, 178, 445, 890, 1157, 1789, 2314, 3578, 5785, 8945, 11570, 17890, 23257, 46514, 116285, 159221, 232570, 318442, 796105, 1592210, 2069873, 4139746, 10349365, 20698730]

約数ペア:

[(1, 20698730), (2, 10349365), (5, 4139746), (10, 2069873), (13, 1592210), (26, 796105), (65, 318442), (89, 232570), (130, 159221), (178, 116285), (445, 46514), (890, 23257), (1157, 17890), (1789, 11570), (2314, 8945), (3578, 5785)]