31120765

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{223}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 42900480

約数和(自身を除く): 11779715

約数列:

[1, 5, 13, 19, 65, 95, 113, 223, 247, 565, 1115, 1235, 1469, 2147, 2899, 4237, 7345, 10735, 14495, 21185, 25199, 27911, 55081, 125995, 139555, 275405, 327587, 478781, 1637935, 2393905, 6224153, 31120765]

約数ペア:

[(1, 31120765), (5, 6224153), (13, 2393905), (19, 1637935), (65, 478781), (95, 327587), (113, 275405), (223, 139555), (247, 125995), (565, 55081), (1115, 27911), (1235, 25199), (1469, 21185), (2147, 14495), (2899, 10735), (4237, 7345)]