128879810

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1$

素因数の和:323

約数の個数: 64

約数和(自身を含む): 252564480

約数和(自身を除く): 123684670

約数列:

[1, 2, 5, 10, 23, 41, 46, 79, 82, 115, 158, 173, 205, 230, 346, 395, 410, 790, 865, 943, 1730, 1817, 1886, 3239, 3634, 3979, 4715, 6478, 7093, 7958, 9085, 9430, 13667, 14186, 16195, 18170, 19895, 27334, 32390, 35465, 39790, 68335, 70930, 74497, 136670, 148994, 163139, 314341, 326278, 372485, 560347, 628682, 744970, 815695, 1120694, 1571705, 1631390, 2801735, 3143410, 5603470, 12887981, 25775962, 64439905, 128879810]

約数ペア:

[(1, 128879810), (2, 64439905), (5, 25775962), (10, 12887981), (23, 5603470), (41, 3143410), (46, 2801735), (79, 1631390), (82, 1571705), (115, 1120694), (158, 815695), (173, 744970), (205, 628682), (230, 560347), (346, 372485), (395, 326278), (410, 314341), (790, 163139), (865, 148994), (943, 136670), (1730, 74497), (1817, 70930), (1886, 68335), (3239, 39790), (3634, 35465), (3979, 32390), (4715, 27334), (6478, 19895), (7093, 18170), (7958, 16195), (9085, 14186), (9430, 13667)]