2019486520

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{363217}}^1$

素因数の和:363367

約数の個数: 32

約数和(自身を含む): 4576546800

約数和(自身を除く): 2557060280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 363217, 726434, 1452868, 1816085, 2905736, 3632170, 7264340, 14528680, 50487163, 100974326, 201948652, 252435815, 403897304, 504871630, 1009743260, 2019486520]

約数ペア:

[(1, 2019486520), (2, 1009743260), (4, 504871630), (5, 403897304), (8, 252435815), (10, 201948652), (20, 100974326), (40, 50487163), (139, 14528680), (278, 7264340), (556, 3632170), (695, 2905736), (1112, 1816085), (1390, 1452868), (2780, 726434), (5560, 363217)]