991015

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:242

約数の個数: 16

約数和(自身を含む): 1283040

約数和(自身を除く): 292025

約数列:

[1, 5, 17, 85, 89, 131, 445, 655, 1513, 2227, 7565, 11135, 11659, 58295, 198203, 991015]

約数ペア:

[(1, 991015), (5, 198203), (17, 58295), (85, 11659), (89, 11135), (131, 7565), (445, 2227), (655, 1513)]