28118580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{66949}}^1$

素因数の和:66968

約数の個数: 48

約数和(自身を含む): 89980800

約数和(自身を除く): 61862220

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 66949, 133898, 200847, 267796, 334745, 401694, 468643, 669490, 803388, 937286, 1004235, 1338980, 1405929, 1874572, 2008470, 2343215, 2811858, 4016940, 4686430, 5623716, 7029645, 9372860, 14059290, 28118580]

約数ペア:

[(1, 28118580), (2, 14059290), (3, 9372860), (4, 7029645), (5, 5623716), (6, 4686430), (7, 4016940), (10, 2811858), (12, 2343215), (14, 2008470), (15, 1874572), (20, 1405929), (21, 1338980), (28, 1004235), (30, 937286), (35, 803388), (42, 669490), (60, 468643), (70, 401694), (84, 334745), (105, 267796), (140, 200847), (210, 133898), (420, 66949)]