20180745

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3833}}^1$

素因数の和:3863

約数の個数: 40

約数和(自身を含む): 38968776

約数和(自身を除く): 18788031

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 351, 405, 585, 1053, 1755, 3833, 5265, 11499, 19165, 34497, 49829, 57495, 103491, 149487, 172485, 249145, 310473, 448461, 517455, 747435, 1345383, 1552365, 2242305, 4036149, 6726915, 20180745]

約数ペア:

[(1, 20180745), (3, 6726915), (5, 4036149), (9, 2242305), (13, 1552365), (15, 1345383), (27, 747435), (39, 517455), (45, 448461), (65, 310473), (81, 249145), (117, 172485), (135, 149487), (195, 103491), (351, 57495), (405, 49829), (585, 34497), (1053, 19165), (1755, 11499), (3833, 5265)]