1995772760

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1\times {\mathrm{2837}}^1$

素因数の和:3300

約数の個数: 64

約数和(自身を含む): 4607776800

約数和(自身を除く): 2612004040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 409, 430, 818, 860, 1636, 1720, 2045, 2837, 3272, 4090, 5674, 8180, 11348, 14185, 16360, 17587, 22696, 28370, 35174, 56740, 70348, 87935, 113480, 121991, 140696, 175870, 243982, 351740, 487964, 609955, 703480, 975928, 1160333, 1219910, 2320666, 2439820, 4641332, 4879640, 5801665, 9282664, 11603330, 23206660, 46413320, 49894319, 99788638, 199577276, 249471595, 399154552, 498943190, 997886380, 1995772760]

約数ペア:

[(1, 1995772760), (2, 997886380), (4, 498943190), (5, 399154552), (8, 249471595), (10, 199577276), (20, 99788638), (40, 49894319), (43, 46413320), (86, 23206660), (172, 11603330), (215, 9282664), (344, 5801665), (409, 4879640), (430, 4641332), (818, 2439820), (860, 2320666), (1636, 1219910), (1720, 1160333), (2045, 975928), (2837, 703480), (3272, 609955), (4090, 487964), (5674, 351740), (8180, 243982), (11348, 175870), (14185, 140696), (16360, 121991), (17587, 113480), (22696, 87935), (28370, 70348), (35174, 56740)]