396673040

素因数分解:

$2^4\times 5^1\times {\mathrm{4958413}}^1$

素因数の和:4958426

約数の個数: 20

約数和(自身を含む): 922265004

約数和(自身を除く): 525591964

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4958413, 9916826, 19833652, 24792065, 39667304, 49584130, 79334608, 99168260, 198336520, 396673040]

約数ペア:

[(1, 396673040), (2, 198336520), (4, 99168260), (5, 79334608), (8, 49584130), (10, 39667304), (16, 24792065), (20, 19833652), (40, 9916826), (80, 4958413)]