61815880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{220771}}^1$

素因数の和:220789

約数の個数: 32

約数和(自身を含む): 158955840

約数和(自身を除く): 97139960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 220771, 441542, 883084, 1103855, 1545397, 1766168, 2207710, 3090794, 4415420, 6181588, 7726985, 8830840, 12363176, 15453970, 30907940, 61815880]

約数ペア:

[(1, 61815880), (2, 30907940), (4, 15453970), (5, 12363176), (7, 8830840), (8, 7726985), (10, 6181588), (14, 4415420), (20, 3090794), (28, 2207710), (35, 1766168), (40, 1545397), (56, 1103855), (70, 883084), (140, 441542), (280, 220771)]