74988990

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2153}}^1$

素因数の和:2215

約数の個数: 80

約数和(自身を含む): 206422128

約数和(自身を除く): 131433138

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 43, 45, 54, 81, 86, 90, 129, 135, 162, 215, 258, 270, 387, 405, 430, 645, 774, 810, 1161, 1290, 1935, 2153, 2322, 3483, 3870, 4306, 5805, 6459, 6966, 10765, 11610, 12918, 17415, 19377, 21530, 32295, 34830, 38754, 58131, 64590, 92579, 96885, 116262, 174393, 185158, 193770, 277737, 290655, 348786, 462895, 555474, 581310, 833211, 871965, 925790, 1388685, 1666422, 1743930, 2499633, 2777370, 4166055, 4999266, 7498899, 8332110, 12498165, 14997798, 24996330, 37494495, 74988990]

約数ペア:

[(1, 74988990), (2, 37494495), (3, 24996330), (5, 14997798), (6, 12498165), (9, 8332110), (10, 7498899), (15, 4999266), (18, 4166055), (27, 2777370), (30, 2499633), (43, 1743930), (45, 1666422), (54, 1388685), (81, 925790), (86, 871965), (90, 833211), (129, 581310), (135, 555474), (162, 462895), (215, 348786), (258, 290655), (270, 277737), (387, 193770), (405, 185158), (430, 174393), (645, 116262), (774, 96885), (810, 92579), (1161, 64590), (1290, 58131), (1935, 38754), (2153, 34830), (2322, 32295), (3483, 21530), (3870, 19377), (4306, 17415), (5805, 12918), (6459, 11610), (6966, 10765)]