204080256340

素因数分解:

$2^2\times 5^1\times {\mathrm{10204012817}}^1$

素因数の和:10204012826

約数の個数: 12

約数和(自身を含む): 428568538356

約数和(自身を除く): 224488282016

約数列:

[1, 2, 4, 5, 10, 20, 10204012817, 20408025634, 40816051268, 51020064085, 102040128170, 204080256340]

約数ペア:

[(1, 204080256340), (2, 102040128170), (4, 51020064085), (5, 40816051268), (10, 20408025634), (20, 10204012817)]