66709240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{128287}}^1$

素因数の和:128311

約数の個数: 32

約数和(自身を含む): 161642880

約数和(自身を除く): 94933640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 128287, 256574, 513148, 641435, 1026296, 1282870, 1667731, 2565740, 3335462, 5131480, 6670924, 8338655, 13341848, 16677310, 33354620, 66709240]

約数ペア:

[(1, 66709240), (2, 33354620), (4, 16677310), (5, 13341848), (8, 8338655), (10, 6670924), (13, 5131480), (20, 3335462), (26, 2565740), (40, 1667731), (52, 1282870), (65, 1026296), (104, 641435), (130, 513148), (260, 256574), (520, 128287)]