28898980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{7727}}^1$

素因数の和:7764

約数の個数: 48

約数和(自身を含む): 70108416

約数和(自身を除く): 41209436

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 7727, 15454, 30908, 38635, 77270, 84997, 131359, 154540, 169994, 262718, 339988, 424985, 525436, 656795, 849970, 1313590, 1444949, 1699940, 2627180, 2889898, 5779796, 7224745, 14449490, 28898980]

約数ペア:

[(1, 28898980), (2, 14449490), (4, 7224745), (5, 5779796), (10, 2889898), (11, 2627180), (17, 1699940), (20, 1444949), (22, 1313590), (34, 849970), (44, 656795), (55, 525436), (68, 424985), (85, 339988), (110, 262718), (170, 169994), (187, 154540), (220, 131359), (340, 84997), (374, 77270), (748, 38635), (935, 30908), (1870, 15454), (3740, 7727)]