285213980

素因数分解:

$2^2\times 5^1\times {\mathrm{1987}}^1\times {\mathrm{7177}}^1$

素因数の和:9173

約数の個数: 24

約数和(自身を含む): 599334288

約数和(自身を除く): 314120308

約数列:

[1, 2, 4, 5, 10, 20, 1987, 3974, 7177, 7948, 9935, 14354, 19870, 28708, 35885, 39740, 71770, 143540, 14260699, 28521398, 57042796, 71303495, 142606990, 285213980]

約数ペア:

[(1, 285213980), (2, 142606990), (4, 71303495), (5, 57042796), (10, 28521398), (20, 14260699), (1987, 143540), (3974, 71770), (7177, 39740), (7948, 35885), (9935, 28708), (14354, 19870)]