51388240

素因数分解:

$2^4\times 5^1\times {\mathrm{487}}^1\times {\mathrm{1319}}^1$

素因数の和:1819

約数の個数: 40

約数和(自身を含む): 119813760

約数和(自身を除く): 68425520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 487, 974, 1319, 1948, 2435, 2638, 3896, 4870, 5276, 6595, 7792, 9740, 10552, 13190, 19480, 21104, 26380, 38960, 52760, 105520, 642353, 1284706, 2569412, 3211765, 5138824, 6423530, 10277648, 12847060, 25694120, 51388240]

約数ペア:

[(1, 51388240), (2, 25694120), (4, 12847060), (5, 10277648), (8, 6423530), (10, 5138824), (16, 3211765), (20, 2569412), (40, 1284706), (80, 642353), (487, 105520), (974, 52760), (1319, 38960), (1948, 26380), (2435, 21104), (2638, 19480), (3896, 13190), (4870, 10552), (5276, 9740), (6595, 7792)]