180828140

素因数分解:

$2^2\times 5^1\times {\mathrm{1381}}^1\times {\mathrm{6547}}^1$

素因数の和:7937

約数の個数: 24

約数和(自身を含む): 380072112

約数和(自身を除く): 199243972

約数列:

[1, 2, 4, 5, 10, 20, 1381, 2762, 5524, 6547, 6905, 13094, 13810, 26188, 27620, 32735, 65470, 130940, 9041407, 18082814, 36165628, 45207035, 90414070, 180828140]

約数ペア:

[(1, 180828140), (2, 90414070), (4, 45207035), (5, 36165628), (10, 18082814), (20, 9041407), (1381, 130940), (2762, 65470), (5524, 32735), (6547, 27620), (6905, 26188), (13094, 13810)]