491120638

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{28961}}^1$

素因数の和:29163

約数の個数: 16

約数和(自身を含む): 754170480

約数和(自身を除く): 263049842

約数列:

[1, 2, 61, 122, 139, 278, 8479, 16958, 28961, 57922, 1766621, 3533242, 4025579, 8051158, 245560319, 491120638]

約数ペア:

[(1, 491120638), (2, 245560319), (61, 8051158), (122, 4025579), (139, 3533242), (278, 1766621), (8479, 57922), (16958, 28961)]