81491690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{2333}}^1$

素因数の和:2846

約数の個数: 32

約数和(自身を含む): 168048000

約数和(自身を除く): 86556310

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 499, 998, 2333, 2495, 3493, 4666, 4990, 6986, 11665, 16331, 17465, 23330, 32662, 34930, 81655, 163310, 1164167, 2328334, 5820835, 8149169, 11641670, 16298338, 40745845, 81491690]

約数ペア:

[(1, 81491690), (2, 40745845), (5, 16298338), (7, 11641670), (10, 8149169), (14, 5820835), (35, 2328334), (70, 1164167), (499, 163310), (998, 81655), (2333, 34930), (2495, 32662), (3493, 23330), (4666, 17465), (4990, 16331), (6986, 11665)]