12928020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{30781}}^1$

素因数の和:30800

約数の個数: 48

約数和(自身を含む): 41371008

約数和(自身を除く): 28442988

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, 30781, 61562, 92343, 123124, 153905, 184686, 215467, 307810, 369372, 430934, 461715, 615620, 646401, 861868, 923430, 1077335, 1292802, 1846860, 2154670, 2585604, 3232005, 4309340, 6464010, 12928020]

約数ペア:

[(1, 12928020), (2, 6464010), (3, 4309340), (4, 3232005), (5, 2585604), (6, 2154670), (7, 1846860), (10, 1292802), (12, 1077335), (14, 923430), (15, 861868), (20, 646401), (21, 615620), (28, 461715), (30, 430934), (35, 369372), (42, 307810), (60, 215467), (70, 184686), (84, 153905), (105, 123124), (140, 92343), (210, 61562), (420, 30781)]