21014721040

素因数分解:

$2^4\times 5^1\times {\mathrm{262684013}}^1$

素因数の和:262684026

約数の個数: 20

約数和(自身を含む): 48859226604

約数和(自身を除く): 27844505564

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 262684013, 525368026, 1050736052, 1313420065, 2101472104, 2626840130, 4202944208, 5253680260, 10507360520, 21014721040]

約数ペア:

[(1, 21014721040), (2, 10507360520), (4, 5253680260), (5, 4202944208), (8, 2626840130), (10, 2101472104), (16, 1313420065), (20, 1050736052), (40, 525368026), (80, 262684013)]