221280360

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{263429}}^1$

素因数の和:263450

約数の個数: 64

約数和(自身を含む): 758678400

約数和(自身を除く): 537398040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 263429, 526858, 790287, 1053716, 1317145, 1580574, 1844003, 2107432, 2634290, 3161148, 3688006, 3951435, 5268580, 5532009, 6322296, 7376012, 7902870, 9220015, 10537160, 11064018, 14752024, 15805740, 18440030, 22128036, 27660045, 31611480, 36880060, 44256072, 55320090, 73760120, 110640180, 221280360]

約数ペア:

[(1, 221280360), (2, 110640180), (3, 73760120), (4, 55320090), (5, 44256072), (6, 36880060), (7, 31611480), (8, 27660045), (10, 22128036), (12, 18440030), (14, 15805740), (15, 14752024), (20, 11064018), (21, 10537160), (24, 9220015), (28, 7902870), (30, 7376012), (35, 6322296), (40, 5532009), (42, 5268580), (56, 3951435), (60, 3688006), (70, 3161148), (84, 2634290), (105, 2107432), (120, 1844003), (140, 1580574), (168, 1317145), (210, 1053716), (280, 790287), (420, 526858), (840, 263429)]