388977320

素因数分解:

$2^3\times 5^1\times {\mathrm{9724433}}^1$

素因数の和:9724444

約数の個数: 16

約数和(自身を含む): 875199060

約数和(自身を除く): 486221740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9724433, 19448866, 38897732, 48622165, 77795464, 97244330, 194488660, 388977320]

約数ペア:

[(1, 388977320), (2, 194488660), (4, 97244330), (5, 77795464), (8, 48622165), (10, 38897732), (20, 19448866), (40, 9724433)]