20656472020

素因数分解:

$2^2\times 5^1\times {\mathrm{1583}}^1\times {\mathrm{652447}}^1$

素因数の和:654039

約数の個数: 24

約数和(自身を含む): 43406060544

約数和(自身を除く): 22749588524

約数列:

[1, 2, 4, 5, 10, 20, 1583, 3166, 6332, 7915, 15830, 31660, 652447, 1304894, 2609788, 3262235, 6524470, 13048940, 1032823601, 2065647202, 4131294404, 5164118005, 10328236010, 20656472020]

約数ペア:

[(1, 20656472020), (2, 10328236010), (4, 5164118005), (5, 4131294404), (10, 2065647202), (20, 1032823601), (1583, 13048940), (3166, 6524470), (6332, 3262235), (7915, 2609788), (15830, 1304894), (31660, 652447)]