201800720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{5333}}^1$

素因数の和:5400

約数の個数: 80

約数和(自身を含む): 523841472

約数和(自身を除く): 322040752

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 344, 430, 440, 473, 688, 860, 880, 946, 1720, 1892, 2365, 3440, 3784, 4730, 5333, 7568, 9460, 10666, 18920, 21332, 26665, 37840, 42664, 53330, 58663, 85328, 106660, 117326, 213320, 229319, 234652, 293315, 426640, 458638, 469304, 586630, 917276, 938608, 1146595, 1173260, 1834552, 2293190, 2346520, 2522509, 3669104, 4586380, 4693040, 5045018, 9172760, 10090036, 12612545, 18345520, 20180072, 25225090, 40360144, 50450180, 100900360, 201800720]

約数ペア:

[(1, 201800720), (2, 100900360), (4, 50450180), (5, 40360144), (8, 25225090), (10, 20180072), (11, 18345520), (16, 12612545), (20, 10090036), (22, 9172760), (40, 5045018), (43, 4693040), (44, 4586380), (55, 3669104), (80, 2522509), (86, 2346520), (88, 2293190), (110, 1834552), (172, 1173260), (176, 1146595), (215, 938608), (220, 917276), (344, 586630), (430, 469304), (440, 458638), (473, 426640), (688, 293315), (860, 234652), (880, 229319), (946, 213320), (1720, 117326), (1892, 106660), (2365, 85328), (3440, 58663), (3784, 53330), (4730, 42664), (5333, 37840), (7568, 26665), (9460, 21332), (10666, 18920)]