320420044

素因数分解:

$2^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{72889}}^1$

素因数の和:73057

約数の個数: 24

約数和(自身を含む): 644930720

約数和(自身を除く): 324510676

約数列:

[1, 2, 4, 7, 14, 28, 157, 314, 628, 1099, 2198, 4396, 72889, 145778, 291556, 510223, 1020446, 2040892, 11443573, 22887146, 45774292, 80105011, 160210022, 320420044]

約数ペア:

[(1, 320420044), (2, 160210022), (4, 80105011), (7, 45774292), (14, 22887146), (28, 11443573), (157, 2040892), (314, 1020446), (628, 510223), (1099, 291556), (2198, 145778), (4396, 72889)]