31983440

素因数分解:

$2^4\times 5^1\times {\mathrm{399793}}^1$

素因数の和:399806

約数の個数: 20

約数和(自身を含む): 74361684

約数和(自身を除く): 42378244

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 399793, 799586, 1599172, 1998965, 3198344, 3997930, 6396688, 7995860, 15991720, 31983440]

約数ペア:

[(1, 31983440), (2, 15991720), (4, 7995860), (5, 6396688), (8, 3997930), (10, 3198344), (16, 1998965), (20, 1599172), (40, 799586), (80, 399793)]