1999520

素因数分解:

$2^5\times 5^1\times {\mathrm{12497}}^1$

素因数の和:12512

約数の個数: 24

約数和(自身を含む): 4724244

約数和(自身を除く): 2724724

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 12497, 24994, 49988, 62485, 99976, 124970, 199952, 249940, 399904, 499880, 999760, 1999520]

約数ペア:

[(1, 1999520), (2, 999760), (4, 499880), (5, 399904), (8, 249940), (10, 199952), (16, 124970), (20, 99976), (32, 62485), (40, 49988), (80, 24994), (160, 12497)]