28847800

素因数分解:

$2^3\times 5^2\times {\mathrm{97}}^1\times {\mathrm{1487}}^1$

素因数の和:1600

約数の個数: 48

約数和(自身を含む): 67808160

約数和(自身を除く): 38960360

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 97, 100, 194, 200, 388, 485, 776, 970, 1487, 1940, 2425, 2974, 3880, 4850, 5948, 7435, 9700, 11896, 14870, 19400, 29740, 37175, 59480, 74350, 144239, 148700, 288478, 297400, 576956, 721195, 1153912, 1442390, 2884780, 3605975, 5769560, 7211950, 14423900, 28847800]

約数ペア:

[(1, 28847800), (2, 14423900), (4, 7211950), (5, 5769560), (8, 3605975), (10, 2884780), (20, 1442390), (25, 1153912), (40, 721195), (50, 576956), (97, 297400), (100, 288478), (194, 148700), (200, 144239), (388, 74350), (485, 59480), (776, 37175), (970, 29740), (1487, 19400), (1940, 14870), (2425, 11896), (2974, 9700), (3880, 7435), (4850, 5948)]