82788400

素因数分解:

$2^4\times 5^2\times {\mathrm{139}}^1\times {\mathrm{1489}}^1$

素因数の和:1646

約数の個数: 60

約数和(自身を含む): 200464600

約数和(自身を除く): 117676200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 139, 200, 278, 400, 556, 695, 1112, 1390, 1489, 2224, 2780, 2978, 3475, 5560, 5956, 6950, 7445, 11120, 11912, 13900, 14890, 23824, 27800, 29780, 37225, 55600, 59560, 74450, 119120, 148900, 206971, 297800, 413942, 595600, 827884, 1034855, 1655768, 2069710, 3311536, 4139420, 5174275, 8278840, 10348550, 16557680, 20697100, 41394200, 82788400]

約数ペア:

[(1, 82788400), (2, 41394200), (4, 20697100), (5, 16557680), (8, 10348550), (10, 8278840), (16, 5174275), (20, 4139420), (25, 3311536), (40, 2069710), (50, 1655768), (80, 1034855), (100, 827884), (139, 595600), (200, 413942), (278, 297800), (400, 206971), (556, 148900), (695, 119120), (1112, 74450), (1390, 59560), (1489, 55600), (2224, 37225), (2780, 29780), (2978, 27800), (3475, 23824), (5560, 14890), (5956, 13900), (6950, 11912), (7445, 11120)]