20015730

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{31771}}^1$

素因数の和:31791

約数の個数: 48

約数和(自身を含む): 59477184

約数和(自身を除く): 39461454

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 31771, 63542, 95313, 158855, 190626, 222397, 285939, 317710, 444794, 476565, 571878, 667191, 953130, 1111985, 1334382, 1429695, 2001573, 2223970, 2859390, 3335955, 4003146, 6671910, 10007865, 20015730]

約数ペア:

[(1, 20015730), (2, 10007865), (3, 6671910), (5, 4003146), (6, 3335955), (7, 2859390), (9, 2223970), (10, 2001573), (14, 1429695), (15, 1334382), (18, 1111985), (21, 953130), (30, 667191), (35, 571878), (42, 476565), (45, 444794), (63, 317710), (70, 285939), (90, 222397), (105, 190626), (126, 158855), (210, 95313), (315, 63542), (630, 31771)]