20218480496

素因数分解:

$2^4\times {\mathrm{4003}}^1\times {\mathrm{315677}}^1$

素因数の和:319688

約数の個数: 20

約数和(自身を含む): 39183216072

約数和(自身を除く): 18964735576

約数列:

[1, 2, 4, 8, 16, 4003, 8006, 16012, 32024, 64048, 315677, 631354, 1262708, 2525416, 5050832, 1263655031, 2527310062, 5054620124, 10109240248, 20218480496]

約数ペア:

[(1, 20218480496), (2, 10109240248), (4, 5054620124), (8, 2527310062), (16, 1263655031), (4003, 5050832), (8006, 2525416), (16012, 1262708), (32024, 631354), (64048, 315677)]