810180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{643}}^1$

素因数の和:665

約数の個数: 72

約数和(自身を含む): 2812992

約数和(自身を除く): 2002812

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 643, 1260, 1286, 1929, 2572, 3215, 3858, 4501, 5787, 6430, 7716, 9002, 9645, 11574, 12860, 13503, 18004, 19290, 22505, 23148, 27006, 28935, 38580, 40509, 45010, 54012, 57870, 67515, 81018, 90020, 115740, 135030, 162036, 202545, 270060, 405090, 810180]

約数ペア:

[(1, 810180), (2, 405090), (3, 270060), (4, 202545), (5, 162036), (6, 135030), (7, 115740), (9, 90020), (10, 81018), (12, 67515), (14, 57870), (15, 54012), (18, 45010), (20, 40509), (21, 38580), (28, 28935), (30, 27006), (35, 23148), (36, 22505), (42, 19290), (45, 18004), (60, 13503), (63, 12860), (70, 11574), (84, 9645), (90, 9002), (105, 7716), (126, 6430), (140, 5787), (180, 4501), (210, 3858), (252, 3215), (315, 2572), (420, 1929), (630, 1286), (643, 1260)]