128578504

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{389}}^1\times {\mathrm{523}}^1$

素因数の和:997

約数の個数: 32

約数和(自身を含む): 245232000

約数和(自身を除く): 116653496

約数列:

[1, 2, 4, 8, 79, 158, 316, 389, 523, 632, 778, 1046, 1556, 2092, 3112, 4184, 30731, 41317, 61462, 82634, 122924, 165268, 203447, 245848, 330536, 406894, 813788, 1627576, 16072313, 32144626, 64289252, 128578504]

約数ペア:

[(1, 128578504), (2, 64289252), (4, 32144626), (8, 16072313), (79, 1627576), (158, 813788), (316, 406894), (389, 330536), (523, 245848), (632, 203447), (778, 165268), (1046, 122924), (1556, 82634), (2092, 61462), (3112, 41317), (4184, 30731)]