289201520

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{26387}}^1$

素因数の和:26537

約数の個数: 40

約数和(自身を含む): 677327184

約数和(自身を除く): 388125664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 2192, 2740, 5480, 10960, 26387, 52774, 105548, 131935, 211096, 263870, 422192, 527740, 1055480, 2110960, 3615019, 7230038, 14460076, 18075095, 28920152, 36150190, 57840304, 72300380, 144600760, 289201520]

約数ペア:

[(1, 289201520), (2, 144600760), (4, 72300380), (5, 57840304), (8, 36150190), (10, 28920152), (16, 18075095), (20, 14460076), (40, 7230038), (80, 3615019), (137, 2110960), (274, 1055480), (548, 527740), (685, 422192), (1096, 263870), (1370, 211096), (2192, 131935), (2740, 105548), (5480, 52774), (10960, 26387)]