31120115

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{28163}}^1$

素因数の和:28198

約数の個数: 16

約数和(自身を含む): 42583968

約数和(自身を除く): 11463853

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 28163, 140815, 366119, 478771, 1830595, 2393855, 6224023, 31120115]

約数ペア:

[(1, 31120115), (5, 6224023), (13, 2393855), (17, 1830595), (65, 478771), (85, 366119), (221, 140815), (1105, 28163)]