39823900

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^2\times {\mathrm{79}}^1$

素因数の和:235

約数の個数: 54

約数和(自身を含む): 88761680

約数和(自身を除く): 48937780

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 79, 100, 142, 158, 284, 316, 355, 395, 710, 790, 1420, 1580, 1775, 1975, 3550, 3950, 5041, 5609, 7100, 7900, 10082, 11218, 20164, 22436, 25205, 28045, 50410, 56090, 100820, 112180, 126025, 140225, 252050, 280450, 398239, 504100, 560900, 796478, 1592956, 1991195, 3982390, 7964780, 9955975, 19911950, 39823900]

約数ペア:

[(1, 39823900), (2, 19911950), (4, 9955975), (5, 7964780), (10, 3982390), (20, 1991195), (25, 1592956), (50, 796478), (71, 560900), (79, 504100), (100, 398239), (142, 280450), (158, 252050), (284, 140225), (316, 126025), (355, 112180), (395, 100820), (710, 56090), (790, 50410), (1420, 28045), (1580, 25205), (1775, 22436), (1975, 20164), (3550, 11218), (3950, 10082), (5041, 7900), (5609, 7100)]