31969040

素因数分解:

$2^4\times 5^1\times {\mathrm{399613}}^1$

素因数の和:399626

約数の個数: 20

約数和(自身を含む): 74328204

約数和(自身を除く): 42359164

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 399613, 799226, 1598452, 1998065, 3196904, 3996130, 6393808, 7992260, 15984520, 31969040]

約数ペア:

[(1, 31969040), (2, 15984520), (4, 7992260), (5, 6393808), (8, 3996130), (10, 3196904), (16, 1998065), (20, 1598452), (40, 799226), (80, 399613)]