203420945

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{447079}}^1$

素因数の和:447104

約数の個数: 16

約数和(自身を含む): 300437760

約数和(自身を除く): 97016815

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 447079, 2235395, 3129553, 5812027, 15647765, 29060135, 40684189, 203420945]

約数ペア:

[(1, 203420945), (5, 40684189), (7, 29060135), (13, 15647765), (35, 5812027), (65, 3129553), (91, 2235395), (455, 447079)]