81877172

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{15287}}^1$

素因数の和:15407

約数の個数: 24

約数和(自身を含む): 155815296

約数和(自身を除く): 73938124

約数列:

[1, 2, 4, 13, 26, 52, 103, 206, 412, 1339, 2678, 5356, 15287, 30574, 61148, 198731, 397462, 794924, 1574561, 3149122, 6298244, 20469293, 40938586, 81877172]

約数ペア:

[(1, 81877172), (2, 40938586), (4, 20469293), (13, 6298244), (26, 3149122), (52, 1574561), (103, 794924), (206, 397462), (412, 198731), (1339, 61148), (2678, 30574), (5356, 15287)]