25688800

素因数分解:

$2^5\times 5^2\times {\mathrm{163}}^1\times {\mathrm{197}}^1$

素因数の和:380

約数の個数: 72

約数和(自身を含む): 63417816

約数和(自身を除く): 37729016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 163, 197, 200, 326, 394, 400, 652, 788, 800, 815, 985, 1304, 1576, 1630, 1970, 2608, 3152, 3260, 3940, 4075, 4925, 5216, 6304, 6520, 7880, 8150, 9850, 13040, 15760, 16300, 19700, 26080, 31520, 32111, 32600, 39400, 64222, 65200, 78800, 128444, 130400, 157600, 160555, 256888, 321110, 513776, 642220, 802775, 1027552, 1284440, 1605550, 2568880, 3211100, 5137760, 6422200, 12844400, 25688800]

約数ペア:

[(1, 25688800), (2, 12844400), (4, 6422200), (5, 5137760), (8, 3211100), (10, 2568880), (16, 1605550), (20, 1284440), (25, 1027552), (32, 802775), (40, 642220), (50, 513776), (80, 321110), (100, 256888), (160, 160555), (163, 157600), (197, 130400), (200, 128444), (326, 78800), (394, 65200), (400, 64222), (652, 39400), (788, 32600), (800, 32111), (815, 31520), (985, 26080), (1304, 19700), (1576, 16300), (1630, 15760), (1970, 13040), (2608, 9850), (3152, 8150), (3260, 7880), (3940, 6520), (4075, 6304), (4925, 5216)]