128928176

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{641}}^1\times {\mathrm{967}}^1$

素因数の和:1629

約数の個数: 40

約数和(自身を含む): 269711904

約数和(自身を除く): 140783728

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 641, 967, 1282, 1934, 2564, 3868, 5128, 7736, 8333, 10256, 12571, 15472, 16666, 25142, 33332, 50284, 66664, 100568, 133328, 201136, 619847, 1239694, 2479388, 4958776, 8058011, 9917552, 16116022, 32232044, 64464088, 128928176]

約数ペア:

[(1, 128928176), (2, 64464088), (4, 32232044), (8, 16116022), (13, 9917552), (16, 8058011), (26, 4958776), (52, 2479388), (104, 1239694), (208, 619847), (641, 201136), (967, 133328), (1282, 100568), (1934, 66664), (2564, 50284), (3868, 33332), (5128, 25142), (7736, 16666), (8333, 15472), (10256, 12571)]