85609720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{305749}}^1$

素因数の和:305767

約数の個数: 32

約数和(自身を含む): 220140000

約数和(自身を除く): 134530280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 305749, 611498, 1222996, 1528745, 2140243, 2445992, 3057490, 4280486, 6114980, 8560972, 10701215, 12229960, 17121944, 21402430, 42804860, 85609720]

約数ペア:

[(1, 85609720), (2, 42804860), (4, 21402430), (5, 17121944), (7, 12229960), (8, 10701215), (10, 8560972), (14, 6114980), (20, 4280486), (28, 3057490), (35, 2445992), (40, 2140243), (56, 1528745), (70, 1222996), (140, 611498), (280, 305749)]