138840220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{365369}}^1$

素因数の和:365397

約数の個数: 24

約数和(自身を含む): 306910800

約数和(自身を除く): 168070580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 365369, 730738, 1461476, 1826845, 3653690, 6942011, 7307380, 13884022, 27768044, 34710055, 69420110, 138840220]

約数ペア:

[(1, 138840220), (2, 69420110), (4, 34710055), (5, 27768044), (10, 13884022), (19, 7307380), (20, 6942011), (38, 3653690), (76, 1826845), (95, 1461476), (190, 730738), (380, 365369)]