81062780

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{1039}}^1$

素因数の和:1178

約数の個数: 48

約数和(自身を含む): 176117760

約数和(自身を除く): 95054980

約数列:

[1, 2, 4, 5, 10, 20, 47, 83, 94, 166, 188, 235, 332, 415, 470, 830, 940, 1039, 1660, 2078, 3901, 4156, 5195, 7802, 10390, 15604, 19505, 20780, 39010, 48833, 78020, 86237, 97666, 172474, 195332, 244165, 344948, 431185, 488330, 862370, 976660, 1724740, 4053139, 8106278, 16212556, 20265695, 40531390, 81062780]

約数ペア:

[(1, 81062780), (2, 40531390), (4, 20265695), (5, 16212556), (10, 8106278), (20, 4053139), (47, 1724740), (83, 976660), (94, 862370), (166, 488330), (188, 431185), (235, 344948), (332, 244165), (415, 195332), (470, 172474), (830, 97666), (940, 86237), (1039, 78020), (1660, 48833), (2078, 39010), (3901, 20780), (4156, 19505), (5195, 15604), (7802, 10390)]