87574660

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{1289}}^1$

素因数の和:1420

約数の個数: 48

約数和(自身を含む): 190713600

約数和(自身を除く): 103138940

約数列:

[1, 2, 4, 5, 10, 20, 43, 79, 86, 158, 172, 215, 316, 395, 430, 790, 860, 1289, 1580, 2578, 3397, 5156, 6445, 6794, 12890, 13588, 16985, 25780, 33970, 55427, 67940, 101831, 110854, 203662, 221708, 277135, 407324, 509155, 554270, 1018310, 1108540, 2036620, 4378733, 8757466, 17514932, 21893665, 43787330, 87574660]

約数ペア:

[(1, 87574660), (2, 43787330), (4, 21893665), (5, 17514932), (10, 8757466), (20, 4378733), (43, 2036620), (79, 1108540), (86, 1018310), (158, 554270), (172, 509155), (215, 407324), (316, 277135), (395, 221708), (430, 203662), (790, 110854), (860, 101831), (1289, 67940), (1580, 55427), (2578, 33970), (3397, 25780), (5156, 16985), (6445, 13588), (6794, 12890)]