991079765

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{491851}}^1$

素因数の和:491900

約数の個数: 16

約数和(自身を含む): 1322098176

約数和(自身を除く): 331018411

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 491851, 2459255, 6394063, 15247381, 31970315, 76236905, 198215953, 991079765]

約数ペア:

[(1, 991079765), (5, 198215953), (13, 76236905), (31, 31970315), (65, 15247381), (155, 6394063), (403, 2459255), (2015, 491851)]