30910460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{220789}}^1$

素因数の和:220805

約数の個数: 24

約数和(自身を含む): 74185440

約数和(自身を除く): 43274980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 220789, 441578, 883156, 1103945, 1545523, 2207890, 3091046, 4415780, 6182092, 7727615, 15455230, 30910460]

約数ペア:

[(1, 30910460), (2, 15455230), (4, 7727615), (5, 6182092), (7, 4415780), (10, 3091046), (14, 2207890), (20, 1545523), (28, 1103945), (35, 883156), (70, 441578), (140, 220789)]