20075644520

素因数分解:

$2^3\times 5^1\times {\mathrm{501891113}}^1$

素因数の和:501891124

約数の個数: 16

約数和(自身を含む): 45170200260

約数和(自身を除く): 25094555740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 501891113, 1003782226, 2007564452, 2509455565, 4015128904, 5018911130, 10037822260, 20075644520]

約数ペア:

[(1, 20075644520), (2, 10037822260), (4, 5018911130), (5, 4015128904), (8, 2509455565), (10, 2007564452), (20, 1003782226), (40, 501891113)]