128665628

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{2543}}^1$

素因数の和:2706

約数の個数: 48

約数和(自身を含む): 279229440

約数和(自身を除く): 150563812

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 139, 182, 278, 364, 556, 973, 1807, 1946, 2543, 3614, 3892, 5086, 7228, 10172, 12649, 17801, 25298, 33059, 35602, 50596, 66118, 71204, 132236, 231413, 353477, 462826, 706954, 925652, 1413908, 2474339, 4595201, 4948678, 9190402, 9897356, 18380804, 32166407, 64332814, 128665628]

約数ペア:

[(1, 128665628), (2, 64332814), (4, 32166407), (7, 18380804), (13, 9897356), (14, 9190402), (26, 4948678), (28, 4595201), (52, 2474339), (91, 1413908), (139, 925652), (182, 706954), (278, 462826), (364, 353477), (556, 231413), (973, 132236), (1807, 71204), (1946, 66118), (2543, 50596), (3614, 35602), (3892, 33059), (5086, 25298), (7228, 17801), (10172, 12649)]