20154090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{389}}^1$

素因数の和:567

約数の個数: 64

約数和(自身を含む): 53239680

約数和(自身を除く): 33085590

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 157, 165, 314, 330, 389, 471, 778, 785, 942, 1167, 1570, 1727, 1945, 2334, 2355, 3454, 3890, 4279, 4710, 5181, 5835, 8558, 8635, 10362, 11670, 12837, 17270, 21395, 25674, 25905, 42790, 51810, 61073, 64185, 122146, 128370, 183219, 305365, 366438, 610730, 671803, 916095, 1343606, 1832190, 2015409, 3359015, 4030818, 6718030, 10077045, 20154090]

約数ペア:

[(1, 20154090), (2, 10077045), (3, 6718030), (5, 4030818), (6, 3359015), (10, 2015409), (11, 1832190), (15, 1343606), (22, 916095), (30, 671803), (33, 610730), (55, 366438), (66, 305365), (110, 183219), (157, 128370), (165, 122146), (314, 64185), (330, 61073), (389, 51810), (471, 42790), (778, 25905), (785, 25674), (942, 21395), (1167, 17270), (1570, 12837), (1727, 11670), (1945, 10362), (2334, 8635), (2355, 8558), (3454, 5835), (3890, 5181), (4279, 4710)]