128715808

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{23801}}^1$

素因数の和:23837

約数の個数: 36

約数和(自身を含む): 274413258

約数和(自身を除く): 145697450

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 169, 208, 338, 416, 676, 1352, 2704, 5408, 23801, 47602, 95204, 190408, 309413, 380816, 618826, 761632, 1237652, 2475304, 4022369, 4950608, 8044738, 9901216, 16089476, 32178952, 64357904, 128715808]

約数ペア:

[(1, 128715808), (2, 64357904), (4, 32178952), (8, 16089476), (13, 9901216), (16, 8044738), (26, 4950608), (32, 4022369), (52, 2475304), (104, 1237652), (169, 761632), (208, 618826), (338, 380816), (416, 309413), (676, 190408), (1352, 95204), (2704, 47602), (5408, 23801)]