87547220

素因数分解:

$2^2\times 5^1\times {\mathrm{1987}}^1\times {\mathrm{2203}}^1$

素因数の和:4199

約数の個数: 24

約数和(自身を含む): 184025184

約数和(自身を除く): 96477964

約数列:

[1, 2, 4, 5, 10, 20, 1987, 2203, 3974, 4406, 7948, 8812, 9935, 11015, 19870, 22030, 39740, 44060, 4377361, 8754722, 17509444, 21886805, 43773610, 87547220]

約数ペア:

[(1, 87547220), (2, 43773610), (4, 21886805), (5, 17509444), (10, 8754722), (20, 4377361), (1987, 44060), (2203, 39740), (3974, 22030), (4406, 19870), (7948, 11015), (8812, 9935)]