20329290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{7789}}^1$

素因数の和:7831

約数の個数: 48

約数和(自身を含む): 54685800

約数和(自身を除く): 34356510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 29, 30, 45, 58, 87, 90, 145, 174, 261, 290, 435, 522, 870, 1305, 2610, 7789, 15578, 23367, 38945, 46734, 70101, 77890, 116835, 140202, 225881, 233670, 350505, 451762, 677643, 701010, 1129405, 1355286, 2032929, 2258810, 3388215, 4065858, 6776430, 10164645, 20329290]

約数ペア:

[(1, 20329290), (2, 10164645), (3, 6776430), (5, 4065858), (6, 3388215), (9, 2258810), (10, 2032929), (15, 1355286), (18, 1129405), (29, 701010), (30, 677643), (45, 451762), (58, 350505), (87, 233670), (90, 225881), (145, 140202), (174, 116835), (261, 77890), (290, 70101), (435, 46734), (522, 38945), (870, 23367), (1305, 15578), (2610, 7789)]