87944620

素因数分解:

$2^2\times 5^1\times {\mathrm{1987}}^1\times {\mathrm{2213}}^1$

素因数の和:4209

約数の個数: 24

約数和(自身を含む): 184860144

約数和(自身を除く): 96915524

約数列:

[1, 2, 4, 5, 10, 20, 1987, 2213, 3974, 4426, 7948, 8852, 9935, 11065, 19870, 22130, 39740, 44260, 4397231, 8794462, 17588924, 21986155, 43972310, 87944620]

約数ペア:

[(1, 87944620), (2, 43972310), (4, 21986155), (5, 17588924), (10, 8794462), (20, 4397231), (1987, 44260), (2213, 39740), (3974, 22130), (4426, 19870), (7948, 11065), (8852, 9935)]