20945850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{311}}^1\times {\mathrm{449}}^1$

素因数の和:775

約数の個数: 48

約数和(自身を含む): 52228800

約数和(自身を除く): 31282950

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150, 311, 449, 622, 898, 933, 1347, 1555, 1866, 2245, 2694, 3110, 4490, 4665, 6735, 7775, 9330, 11225, 13470, 15550, 22450, 23325, 33675, 46650, 67350, 139639, 279278, 418917, 698195, 837834, 1396390, 2094585, 3490975, 4189170, 6981950, 10472925, 20945850]

約数ペア:

[(1, 20945850), (2, 10472925), (3, 6981950), (5, 4189170), (6, 3490975), (10, 2094585), (15, 1396390), (25, 837834), (30, 698195), (50, 418917), (75, 279278), (150, 139639), (311, 67350), (449, 46650), (622, 33675), (898, 23325), (933, 22450), (1347, 15550), (1555, 13470), (1866, 11225), (2245, 9330), (2694, 7775), (3110, 6735), (4490, 4665)]