72171856

素因数分解:

$2^4\times {\mathrm{1721}}^1\times {\mathrm{2621}}^1$

素因数の和:4350

約数の個数: 20

約数和(自身を含む): 139967604

約数和(自身を除く): 67795748

約数列:

[1, 2, 4, 8, 16, 1721, 2621, 3442, 5242, 6884, 10484, 13768, 20968, 27536, 41936, 4510741, 9021482, 18042964, 36085928, 72171856]

約数ペア:

[(1, 72171856), (2, 36085928), (4, 18042964), (8, 9021482), (16, 4510741), (1721, 41936), (2621, 27536), (3442, 20968), (5242, 13768), (6884, 10484)]