64356680

素因数分解:

$2^3\times 5^1\times {\mathrm{1231}}^1\times {\mathrm{1307}}^1$

素因数の和:2549

約数の個数: 32

約数和(自身を含む): 145031040

約数和(自身を除く): 80674360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1231, 1307, 2462, 2614, 4924, 5228, 6155, 6535, 9848, 10456, 12310, 13070, 24620, 26140, 49240, 52280, 1608917, 3217834, 6435668, 8044585, 12871336, 16089170, 32178340, 64356680]

約数ペア:

[(1, 64356680), (2, 32178340), (4, 16089170), (5, 12871336), (8, 8044585), (10, 6435668), (20, 3217834), (40, 1608917), (1231, 52280), (1307, 49240), (2462, 26140), (2614, 24620), (4924, 13070), (5228, 12310), (6155, 10456), (6535, 9848)]