81212320

素因数分解:

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

素因数の和:1310

約数の個数: 96

約数和(自身を含む): 223171200

約数和(自身を除く): 141958880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 59, 70, 80, 112, 118, 140, 160, 224, 236, 280, 295, 413, 472, 560, 590, 826, 944, 1120, 1180, 1229, 1652, 1888, 2065, 2360, 2458, 3304, 4130, 4720, 4916, 6145, 6608, 8260, 8603, 9440, 9832, 12290, 13216, 16520, 17206, 19664, 24580, 33040, 34412, 39328, 43015, 49160, 66080, 68824, 72511, 86030, 98320, 137648, 145022, 172060, 196640, 275296, 290044, 344120, 362555, 507577, 580088, 688240, 725110, 1015154, 1160176, 1376480, 1450220, 2030308, 2320352, 2537885, 2900440, 4060616, 5075770, 5800880, 8121232, 10151540, 11601760, 16242464, 20303080, 40606160, 81212320]

約数ペア:

[(1, 81212320), (2, 40606160), (4, 20303080), (5, 16242464), (7, 11601760), (8, 10151540), (10, 8121232), (14, 5800880), (16, 5075770), (20, 4060616), (28, 2900440), (32, 2537885), (35, 2320352), (40, 2030308), (56, 1450220), (59, 1376480), (70, 1160176), (80, 1015154), (112, 725110), (118, 688240), (140, 580088), (160, 507577), (224, 362555), (236, 344120), (280, 290044), (295, 275296), (413, 196640), (472, 172060), (560, 145022), (590, 137648), (826, 98320), (944, 86030), (1120, 72511), (1180, 68824), (1229, 66080), (1652, 49160), (1888, 43015), (2065, 39328), (2360, 34412), (2458, 33040), (3304, 24580), (4130, 19664), (4720, 17206), (4916, 16520), (6145, 13216), (6608, 12290), (8260, 9832), (8603, 9440)]