20203960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1223}}^1$

素因数の和:1300

約数の個数: 64

約数和(自身を含む): 52876800

約数和(自身を除く): 32672840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 59, 70, 118, 140, 236, 280, 295, 413, 472, 590, 826, 1180, 1223, 1652, 2065, 2360, 2446, 3304, 4130, 4892, 6115, 8260, 8561, 9784, 12230, 16520, 17122, 24460, 34244, 42805, 48920, 68488, 72157, 85610, 144314, 171220, 288628, 342440, 360785, 505099, 577256, 721570, 1010198, 1443140, 2020396, 2525495, 2886280, 4040792, 5050990, 10101980, 20203960]

約数ペア:

[(1, 20203960), (2, 10101980), (4, 5050990), (5, 4040792), (7, 2886280), (8, 2525495), (10, 2020396), (14, 1443140), (20, 1010198), (28, 721570), (35, 577256), (40, 505099), (56, 360785), (59, 342440), (70, 288628), (118, 171220), (140, 144314), (236, 85610), (280, 72157), (295, 68488), (413, 48920), (472, 42805), (590, 34244), (826, 24460), (1180, 17122), (1223, 16520), (1652, 12230), (2065, 9784), (2360, 8561), (2446, 8260), (3304, 6115), (4130, 4892)]