19875980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{24239}}^1$

素因数の和:24289

約数の個数: 24

約数和(自身を含む): 42759360

約数和(自身を除く): 22883380

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 24239, 48478, 96956, 121195, 242390, 484780, 993799, 1987598, 3975196, 4968995, 9937990, 19875980]

約数ペア:

[(1, 19875980), (2, 9937990), (4, 4968995), (5, 3975196), (10, 1987598), (20, 993799), (41, 484780), (82, 242390), (164, 121195), (205, 96956), (410, 48478), (820, 24239)]