90001040

素因数分解:

$2^4\times 5^1\times {\mathrm{1125013}}^1$

素因数の和:1125026

約数の個数: 20

約数和(自身を含む): 209252604

約数和(自身を除く): 119251564

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1125013, 2250026, 4500052, 5625065, 9000104, 11250130, 18000208, 22500260, 45000520, 90001040]

約数ペア:

[(1, 90001040), (2, 45000520), (4, 22500260), (5, 18000208), (8, 11250130), (10, 9000104), (16, 5625065), (20, 4500052), (40, 2250026), (80, 1125013)]