81581672

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{769}}^1$

素因数の和:1013

約数の個数: 32

約数和(自身を含む): 155925000

約数和(自身を除く): 74343328

約数列:

[1, 2, 4, 8, 89, 149, 178, 298, 356, 596, 712, 769, 1192, 1538, 3076, 6152, 13261, 26522, 53044, 68441, 106088, 114581, 136882, 229162, 273764, 458324, 547528, 916648, 10197709, 20395418, 40790836, 81581672]

約数ペア:

[(1, 81581672), (2, 40790836), (4, 20395418), (8, 10197709), (89, 916648), (149, 547528), (178, 458324), (298, 273764), (356, 229162), (596, 136882), (712, 114581), (769, 106088), (1192, 68441), (1538, 53044), (3076, 26522), (6152, 13261)]