72172912

素因数分解:

$2^4\times 7^1\times {\mathrm{644401}}^1$

素因数の和:644416

約数の個数: 20

約数和(自身を含む): 159811696

約数和(自身を除く): 87638784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 644401, 1288802, 2577604, 4510807, 5155208, 9021614, 10310416, 18043228, 36086456, 72172912]

約数ペア:

[(1, 72172912), (2, 36086456), (4, 18043228), (7, 10310416), (8, 9021614), (14, 5155208), (16, 4510807), (28, 2577604), (56, 1288802), (112, 644401)]