1264145840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{19777}}^1$

素因数の和:19854

約数の個数: 80

約数和(自身を含む): 3178403712

約数和(自身を除く): 1914257872

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 47, 68, 80, 85, 94, 136, 170, 188, 235, 272, 340, 376, 470, 680, 752, 799, 940, 1360, 1598, 1880, 3196, 3760, 3995, 6392, 7990, 12784, 15980, 19777, 31960, 39554, 63920, 79108, 98885, 158216, 197770, 316432, 336209, 395540, 672418, 791080, 929519, 1344836, 1582160, 1681045, 1859038, 2689672, 3362090, 3718076, 4647595, 5379344, 6724180, 7436152, 9295190, 13448360, 14872304, 15801823, 18590380, 26896720, 31603646, 37180760, 63207292, 74361520, 79009115, 126414584, 158018230, 252829168, 316036460, 632072920, 1264145840]

約数ペア:

[(1, 1264145840), (2, 632072920), (4, 316036460), (5, 252829168), (8, 158018230), (10, 126414584), (16, 79009115), (17, 74361520), (20, 63207292), (34, 37180760), (40, 31603646), (47, 26896720), (68, 18590380), (80, 15801823), (85, 14872304), (94, 13448360), (136, 9295190), (170, 7436152), (188, 6724180), (235, 5379344), (272, 4647595), (340, 3718076), (376, 3362090), (470, 2689672), (680, 1859038), (752, 1681045), (799, 1582160), (940, 1344836), (1360, 929519), (1598, 791080), (1880, 672418), (3196, 395540), (3760, 336209), (3995, 316432), (6392, 197770), (7990, 158216), (12784, 98885), (15980, 79108), (19777, 63920), (31960, 39554)]