260300020

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1\times {\mathrm{773}}^1$

素因数の和:1044

約数の個数: 48

約数和(自身を含む): 555886800

約数和(自身を除く): 295586780

約数列:

[1, 2, 4, 5, 10, 20, 113, 149, 226, 298, 452, 565, 596, 745, 773, 1130, 1490, 1546, 2260, 2980, 3092, 3865, 7730, 15460, 16837, 33674, 67348, 84185, 87349, 115177, 168370, 174698, 230354, 336740, 349396, 436745, 460708, 575885, 873490, 1151770, 1746980, 2303540, 13015001, 26030002, 52060004, 65075005, 130150010, 260300020]

約数ペア:

[(1, 260300020), (2, 130150010), (4, 65075005), (5, 52060004), (10, 26030002), (20, 13015001), (113, 2303540), (149, 1746980), (226, 1151770), (298, 873490), (452, 575885), (565, 460708), (596, 436745), (745, 349396), (773, 336740), (1130, 230354), (1490, 174698), (1546, 168370), (2260, 115177), (2980, 87349), (3092, 84185), (3865, 67348), (7730, 33674), (15460, 16837)]