27817780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{81817}}^1$

素因数の和:81843

約数の個数: 24

約数和(自身を含む): 61854408

約数和(自身を除く): 34036628

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 81817, 163634, 327268, 409085, 818170, 1390889, 1636340, 2781778, 5563556, 6954445, 13908890, 27817780]

約数ペア:

[(1, 27817780), (2, 13908890), (4, 6954445), (5, 5563556), (10, 2781778), (17, 1636340), (20, 1390889), (34, 818170), (68, 409085), (85, 327268), (170, 163634), (340, 81817)]