72043240

素因数分解:

$2^3\times 5^1\times {\mathrm{863}}^1\times {\mathrm{2087}}^1$

素因数の和:2961

約数の個数: 32

約数和(自身を含む): 162362880

約数和(自身を除く): 90319640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 863, 1726, 2087, 3452, 4174, 4315, 6904, 8348, 8630, 10435, 16696, 17260, 20870, 34520, 41740, 83480, 1801081, 3602162, 7204324, 9005405, 14408648, 18010810, 36021620, 72043240]

約数ペア:

[(1, 72043240), (2, 36021620), (4, 18010810), (5, 14408648), (8, 9005405), (10, 7204324), (20, 3602162), (40, 1801081), (863, 83480), (1726, 41740), (2087, 34520), (3452, 20870), (4174, 17260), (4315, 16696), (6904, 10435), (8348, 8630)]