31993040

素因数分解:

$2^4\times 5^1\times {\mathrm{399913}}^1$

素因数の和:399926

約数の個数: 20

約数和(自身を含む): 74384004

約数和(自身を除く): 42390964

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 399913, 799826, 1599652, 1999565, 3199304, 3999130, 6398608, 7998260, 15996520, 31993040]

約数ペア:

[(1, 31993040), (2, 15996520), (4, 7998260), (5, 6398608), (8, 3999130), (10, 3199304), (16, 1999565), (20, 1599652), (40, 799826), (80, 399913)]