72112840

素因数分解:

$2^3\times 5^1\times {\mathrm{1802821}}^1$

素因数の和:1802832

約数の個数: 16

約数和(自身を含む): 162253980

約数和(自身を除く): 90141140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1802821, 3605642, 7211284, 9014105, 14422568, 18028210, 36056420, 72112840]

約数ペア:

[(1, 72112840), (2, 36056420), (4, 18028210), (5, 14422568), (8, 9014105), (10, 7211284), (20, 3605642), (40, 1802821)]