899960

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 2052000

約数和(自身を除く): 1152040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 151, 298, 302, 596, 604, 745, 755, 1192, 1208, 1490, 1510, 2980, 3020, 5960, 6040, 22499, 44998, 89996, 112495, 179992, 224990, 449980, 899960]

約数ペア:

[(1, 899960), (2, 449980), (4, 224990), (5, 179992), (8, 112495), (10, 89996), (20, 44998), (40, 22499), (149, 6040), (151, 5960), (298, 3020), (302, 2980), (596, 1510), (604, 1490), (745, 1208), (755, 1192)]