20303080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1229}}^1$

素因数の和:1306

約数の個数: 64

約数和(自身を含む): 53136000

約数和(自身を除く): 32832920

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, 1229, 1652, 2065, 2360, 2458, 3304, 4130, 4916, 6145, 8260, 8603, 9832, 12290, 16520, 17206, 24580, 34412, 43015, 49160, 68824, 72511, 86030, 145022, 172060, 290044, 344120, 362555, 507577, 580088, 725110, 1015154, 1450220, 2030308, 2537885, 2900440, 4060616, 5075770, 10151540, 20303080]

約数ペア:

[(1, 20303080), (2, 10151540), (4, 5075770), (5, 4060616), (7, 2900440), (8, 2537885), (10, 2030308), (14, 1450220), (20, 1015154), (28, 725110), (35, 580088), (40, 507577), (56, 362555), (59, 344120), (70, 290044), (118, 172060), (140, 145022), (236, 86030), (280, 72511), (295, 68824), (413, 49160), (472, 43015), (590, 34412), (826, 24580), (1180, 17206), (1229, 16520), (1652, 12290), (2065, 9832), (2360, 8603), (2458, 8260), (3304, 6145), (4130, 4916)]