20925090

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5407}}^1$

素因数の和:5463

約数の個数: 48

約数和(自身を含む): 55680768

約数和(自身を除く): 34755678

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, 5407, 10814, 16221, 27035, 32442, 48663, 54070, 81105, 97326, 162210, 232501, 243315, 465002, 486630, 697503, 1162505, 1395006, 2092509, 2325010, 3487515, 4185018, 6975030, 10462545, 20925090]

約数ペア:

[(1, 20925090), (2, 10462545), (3, 6975030), (5, 4185018), (6, 3487515), (9, 2325010), (10, 2092509), (15, 1395006), (18, 1162505), (30, 697503), (43, 486630), (45, 465002), (86, 243315), (90, 232501), (129, 162210), (215, 97326), (258, 81105), (387, 54070), (430, 48663), (645, 32442), (774, 27035), (1290, 16221), (1935, 10814), (3870, 5407)]