20465185

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{227}}^1$

素因数の和:337

約数の個数: 32

約数和(自身を含む): 28344960

約数和(自身を除く): 7879775

約数列:

[1, 5, 13, 19, 65, 73, 95, 227, 247, 365, 949, 1135, 1235, 1387, 2951, 4313, 4745, 6935, 14755, 16571, 18031, 21565, 56069, 82855, 90155, 215423, 280345, 314849, 1077115, 1574245, 4093037, 20465185]

約数ペア:

[(1, 20465185), (5, 4093037), (13, 1574245), (19, 1077115), (65, 314849), (73, 280345), (95, 215423), (227, 90155), (247, 82855), (365, 56069), (949, 21565), (1135, 18031), (1235, 16571), (1387, 14755), (2951, 6935), (4313, 4745)]