20064980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{337}}^1$

素因数の和:588

約数の個数: 48

約数和(自身を含む): 45711120

約数和(自身を除く): 25646140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 229, 260, 337, 458, 674, 916, 1145, 1348, 1685, 2290, 2977, 3370, 4381, 4580, 5954, 6740, 8762, 11908, 14885, 17524, 21905, 29770, 43810, 59540, 77173, 87620, 154346, 308692, 385865, 771730, 1003249, 1543460, 2006498, 4012996, 5016245, 10032490, 20064980]

約数ペア:

[(1, 20064980), (2, 10032490), (4, 5016245), (5, 4012996), (10, 2006498), (13, 1543460), (20, 1003249), (26, 771730), (52, 385865), (65, 308692), (130, 154346), (229, 87620), (260, 77173), (337, 59540), (458, 43810), (674, 29770), (916, 21905), (1145, 17524), (1348, 14885), (1685, 11908), (2290, 8762), (2977, 6740), (3370, 5954), (4381, 4580)]