15665601040

素因数分解:

$2^4\times 5^1\times {\mathrm{195820013}}^1$

素因数の和:195820026

約数の個数: 20

約数和(自身を含む): 36422522604

約数和(自身を除く): 20756921564

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 195820013, 391640026, 783280052, 979100065, 1566560104, 1958200130, 3133120208, 3916400260, 7832800520, 15665601040]

約数ペア:

[(1, 15665601040), (2, 7832800520), (4, 3916400260), (5, 3133120208), (8, 1958200130), (10, 1566560104), (16, 979100065), (20, 783280052), (40, 391640026), (80, 195820013)]