72687356

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{42557}}^1$

素因数の和:42629

約数の個数: 24

約数和(自身を含む): 147761376

約数和(自身を除く): 75074020

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 42557, 85114, 170228, 297899, 595798, 1191596, 2595977, 5191954, 10383908, 18171839, 36343678, 72687356]

約数ペア:

[(1, 72687356), (2, 36343678), (4, 18171839), (7, 10383908), (14, 5191954), (28, 2595977), (61, 1191596), (122, 595798), (244, 297899), (427, 170228), (854, 85114), (1708, 42557)]