217701095

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{947}}^1\times {\mathrm{1999}}^1$

素因数の和:2974

約数の個数: 16

約数和(自身を含む): 273024000

約数和(自身を除く): 55322905

約数列:

[1, 5, 23, 115, 947, 1999, 4735, 9995, 21781, 45977, 108905, 229885, 1893053, 9465265, 43540219, 217701095]

約数ペア:

[(1, 217701095), (5, 43540219), (23, 9465265), (115, 1893053), (947, 229885), (1999, 108905), (4735, 45977), (9995, 21781)]