81003160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{289297}}^1$

素因数の和:289315

約数の個数: 32

約数和(自身を含む): 208294560

約数和(自身を除く): 127291400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 289297, 578594, 1157188, 1446485, 2025079, 2314376, 2892970, 4050158, 5785940, 8100316, 10125395, 11571880, 16200632, 20250790, 40501580, 81003160]

約数ペア:

[(1, 81003160), (2, 40501580), (4, 20250790), (5, 16200632), (7, 11571880), (8, 10125395), (10, 8100316), (14, 5785940), (20, 4050158), (28, 2892970), (35, 2314376), (40, 2025079), (56, 1446485), (70, 1157188), (140, 578594), (280, 289297)]