689080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:148

約数の個数: 64

約数和(自身を含む): 1866240

約数和(自身を除く): 1177160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 107, 115, 140, 161, 184, 214, 230, 280, 322, 428, 460, 535, 644, 749, 805, 856, 920, 1070, 1288, 1498, 1610, 2140, 2461, 2996, 3220, 3745, 4280, 4922, 5992, 6440, 7490, 9844, 12305, 14980, 17227, 19688, 24610, 29960, 34454, 49220, 68908, 86135, 98440, 137816, 172270, 344540, 689080]

約数ペア:

[(1, 689080), (2, 344540), (4, 172270), (5, 137816), (7, 98440), (8, 86135), (10, 68908), (14, 49220), (20, 34454), (23, 29960), (28, 24610), (35, 19688), (40, 17227), (46, 14980), (56, 12305), (70, 9844), (92, 7490), (107, 6440), (115, 5992), (140, 4922), (161, 4280), (184, 3745), (214, 3220), (230, 2996), (280, 2461), (322, 2140), (428, 1610), (460, 1498), (535, 1288), (644, 1070), (749, 920), (805, 856)]