661080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{787}}^1$

素因数の和:808

約数の個数: 64

約数和(自身を含む): 2269440

約数和(自身を除く): 1608360

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, 787, 840, 1574, 2361, 3148, 3935, 4722, 5509, 6296, 7870, 9444, 11018, 11805, 15740, 16527, 18888, 22036, 23610, 27545, 31480, 33054, 44072, 47220, 55090, 66108, 82635, 94440, 110180, 132216, 165270, 220360, 330540, 661080]

約数ペア:

[(1, 661080), (2, 330540), (3, 220360), (4, 165270), (5, 132216), (6, 110180), (7, 94440), (8, 82635), (10, 66108), (12, 55090), (14, 47220), (15, 44072), (20, 33054), (21, 31480), (24, 27545), (28, 23610), (30, 22036), (35, 18888), (40, 16527), (42, 15740), (56, 11805), (60, 11018), (70, 9444), (84, 7870), (105, 6296), (120, 5509), (140, 4722), (168, 3935), (210, 3148), (280, 2361), (420, 1574), (787, 840)]