27946420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1\times {\mathrm{197}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 60773328

約数和(自身を除く): 32826908

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 173, 197, 205, 346, 394, 410, 692, 788, 820, 865, 985, 1730, 1970, 3460, 3940, 7093, 8077, 14186, 16154, 28372, 32308, 34081, 35465, 40385, 68162, 70930, 80770, 136324, 141860, 161540, 170405, 340810, 681620, 1397321, 2794642, 5589284, 6986605, 13973210, 27946420]

約数ペア:

[(1, 27946420), (2, 13973210), (4, 6986605), (5, 5589284), (10, 2794642), (20, 1397321), (41, 681620), (82, 340810), (164, 170405), (173, 161540), (197, 141860), (205, 136324), (346, 80770), (394, 70930), (410, 68162), (692, 40385), (788, 35465), (820, 34081), (865, 32308), (985, 28372), (1730, 16154), (1970, 14186), (3460, 8077), (3940, 7093)]