20824470

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5381}}^1$

素因数の和:5437

約数の個数: 48

約数和(自身を含む): 55413072

約数和(自身を除く): 34588602

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 129, 215, 258, 387, 430, 645, 774, 1290, 1935, 3870, 5381, 10762, 16143, 26905, 32286, 48429, 53810, 80715, 96858, 161430, 231383, 242145, 462766, 484290, 694149, 1156915, 1388298, 2082447, 2313830, 3470745, 4164894, 6941490, 10412235, 20824470]

約数ペア:

[(1, 20824470), (2, 10412235), (3, 6941490), (5, 4164894), (6, 3470745), (9, 2313830), (10, 2082447), (15, 1388298), (18, 1156915), (30, 694149), (43, 484290), (45, 462766), (86, 242145), (90, 231383), (129, 161430), (215, 96858), (258, 80715), (387, 53810), (430, 48429), (645, 32286), (774, 26905), (1290, 16143), (1935, 10762), (3870, 5381)]