20343175

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:363

約数の個数: 24

約数和(自身を含む): 26248320

約数和(自身を除く): 5905145

約数列:

[1, 5, 25, 41, 89, 205, 223, 445, 1025, 1115, 2225, 3649, 5575, 9143, 18245, 19847, 45715, 91225, 99235, 228575, 496175, 813727, 4068635, 20343175]

約数ペア:

[(1, 20343175), (5, 4068635), (25, 813727), (41, 496175), (89, 228575), (205, 99235), (223, 91225), (445, 45715), (1025, 19847), (1115, 18245), (2225, 9143), (3649, 5575)]