81153780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{3307}}^1$

素因数の和:3728

約数の個数: 48

約数和(自身を含む): 227855040

約数和(自身を除く): 146701260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 409, 818, 1227, 1636, 2045, 2454, 3307, 4090, 4908, 6135, 6614, 8180, 9921, 12270, 13228, 16535, 19842, 24540, 33070, 39684, 49605, 66140, 99210, 198420, 1352563, 2705126, 4057689, 5410252, 6762815, 8115378, 13525630, 16230756, 20288445, 27051260, 40576890, 81153780]

約数ペア:

[(1, 81153780), (2, 40576890), (3, 27051260), (4, 20288445), (5, 16230756), (6, 13525630), (10, 8115378), (12, 6762815), (15, 5410252), (20, 4057689), (30, 2705126), (60, 1352563), (409, 198420), (818, 99210), (1227, 66140), (1636, 49605), (2045, 39684), (2454, 33070), (3307, 24540), (4090, 19842), (4908, 16535), (6135, 13228), (6614, 12270), (8180, 9921)]