7497820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{197}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 17363808

約数和(自身を除く): 9865988

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 173, 197, 220, 346, 394, 692, 788, 865, 985, 1730, 1903, 1970, 2167, 3460, 3806, 3940, 4334, 7612, 8668, 9515, 10835, 19030, 21670, 34081, 38060, 43340, 68162, 136324, 170405, 340810, 374891, 681620, 749782, 1499564, 1874455, 3748910, 7497820]

約数ペア:

[(1, 7497820), (2, 3748910), (4, 1874455), (5, 1499564), (10, 749782), (11, 681620), (20, 374891), (22, 340810), (44, 170405), (55, 136324), (110, 68162), (173, 43340), (197, 38060), (220, 34081), (346, 21670), (394, 19030), (692, 10835), (788, 9515), (865, 8668), (985, 7612), (1730, 4334), (1903, 3940), (1970, 3806), (2167, 3460)]