1279884834

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{640583}}^1$

素因数の和:640631

約数の個数: 32

約数和(自身を含む): 2921063040

約数和(自身を除く): 1641178206

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 666, 999, 1998, 640583, 1281166, 1921749, 3843498, 5765247, 11530494, 17295741, 23701571, 34591482, 47403142, 71104713, 142209426, 213314139, 426628278, 639942417, 1279884834]

約数ペア:

[(1, 1279884834), (2, 639942417), (3, 426628278), (6, 213314139), (9, 142209426), (18, 71104713), (27, 47403142), (37, 34591482), (54, 23701571), (74, 17295741), (111, 11530494), (222, 5765247), (333, 3843498), (666, 1921749), (999, 1281166), (1998, 640583)]