66206440

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{3371}}^1$

素因数の和:3873

約数の個数: 32

約数和(自身を含む): 149312160

約数和(自身を除く): 83105720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3371, 3928, 4910, 6742, 9820, 13484, 16855, 19640, 26968, 33710, 67420, 134840, 1655161, 3310322, 6620644, 8275805, 13241288, 16551610, 33103220, 66206440]

約数ペア:

[(1, 66206440), (2, 33103220), (4, 16551610), (5, 13241288), (8, 8275805), (10, 6620644), (20, 3310322), (40, 1655161), (491, 134840), (982, 67420), (1964, 33710), (2455, 26968), (3371, 19640), (3928, 16855), (4910, 13484), (6742, 9820)]