131843120

素因数分解:

$2^4\times 5^1\times {\mathrm{1648039}}^1$

素因数の和:1648052

約数の個数: 20

約数和(自身を含む): 306535440

約数和(自身を除く): 174692320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1648039, 3296078, 6592156, 8240195, 13184312, 16480390, 26368624, 32960780, 65921560, 131843120]

約数ペア:

[(1, 131843120), (2, 65921560), (4, 32960780), (5, 26368624), (8, 16480390), (10, 13184312), (16, 8240195), (20, 6592156), (40, 3296078), (80, 1648039)]