488800

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1$

素因数の和:80

約数の個数: 72

約数和(自身を含む): 1312416

約数和(自身を除く): 823616

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 47, 50, 52, 65, 80, 94, 100, 104, 130, 160, 188, 200, 208, 235, 260, 325, 376, 400, 416, 470, 520, 611, 650, 752, 800, 940, 1040, 1175, 1222, 1300, 1504, 1880, 2080, 2350, 2444, 2600, 3055, 3760, 4700, 4888, 5200, 6110, 7520, 9400, 9776, 10400, 12220, 15275, 18800, 19552, 24440, 30550, 37600, 48880, 61100, 97760, 122200, 244400, 488800]

約数ペア:

[(1, 488800), (2, 244400), (4, 122200), (5, 97760), (8, 61100), (10, 48880), (13, 37600), (16, 30550), (20, 24440), (25, 19552), (26, 18800), (32, 15275), (40, 12220), (47, 10400), (50, 9776), (52, 9400), (65, 7520), (80, 6110), (94, 5200), (100, 4888), (104, 4700), (130, 3760), (160, 3055), (188, 2600), (200, 2444), (208, 2350), (235, 2080), (260, 1880), (325, 1504), (376, 1300), (400, 1222), (416, 1175), (470, 1040), (520, 940), (611, 800), (650, 752)]