28019660

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1051}}^1$

素因数の和:1134

約数の個数: 48

約数和(自身を含む): 62211072

約数和(自身を除く): 34191412

約数列:

[1, 2, 4, 5, 10, 20, 31, 43, 62, 86, 124, 155, 172, 215, 310, 430, 620, 860, 1051, 1333, 2102, 2666, 4204, 5255, 5332, 6665, 10510, 13330, 21020, 26660, 32581, 45193, 65162, 90386, 130324, 162905, 180772, 225965, 325810, 451930, 651620, 903860, 1400983, 2801966, 5603932, 7004915, 14009830, 28019660]

約数ペア:

[(1, 28019660), (2, 14009830), (4, 7004915), (5, 5603932), (10, 2801966), (20, 1400983), (31, 903860), (43, 651620), (62, 451930), (86, 325810), (124, 225965), (155, 180772), (172, 162905), (215, 130324), (310, 90386), (430, 65162), (620, 45193), (860, 32581), (1051, 26660), (1333, 21020), (2102, 13330), (2666, 10510), (4204, 6665), (5255, 5332)]