20510220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11027}}^1$

素因数の和:11070

約数の個数: 48

約数和(自身を含む): 59286528

約数和(自身を除く): 38776308

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 1860, 11027, 22054, 33081, 44108, 55135, 66162, 110270, 132324, 165405, 220540, 330810, 341837, 661620, 683674, 1025511, 1367348, 1709185, 2051022, 3418370, 4102044, 5127555, 6836740, 10255110, 20510220]

約数ペア:

[(1, 20510220), (2, 10255110), (3, 6836740), (4, 5127555), (5, 4102044), (6, 3418370), (10, 2051022), (12, 1709185), (15, 1367348), (20, 1025511), (30, 683674), (31, 661620), (60, 341837), (62, 330810), (93, 220540), (124, 165405), (155, 132324), (186, 110270), (310, 66162), (372, 55135), (465, 44108), (620, 33081), (930, 22054), (1860, 11027)]