204645320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:399

約数の個数: 128

約数和(自身を含む): 538876800

約数和(自身を除く): 334231480

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 109, 110, 136, 170, 187, 218, 220, 251, 340, 374, 436, 440, 502, 545, 680, 748, 872, 935, 1004, 1090, 1199, 1255, 1496, 1853, 1870, 2008, 2180, 2398, 2510, 2761, 3706, 3740, 4267, 4360, 4796, 5020, 5522, 5995, 7412, 7480, 8534, 9265, 9592, 10040, 11044, 11990, 13805, 14824, 17068, 18530, 20383, 21335, 22088, 23980, 27359, 27610, 34136, 37060, 40766, 42670, 46937, 47960, 54718, 55220, 74120, 81532, 85340, 93874, 101915, 109436, 110440, 136795, 163064, 170680, 187748, 203830, 218872, 234685, 273590, 300949, 375496, 407660, 465103, 469370, 547180, 601898, 815320, 930206, 938740, 1094360, 1203796, 1504745, 1860412, 1877480, 2325515, 2407592, 3009490, 3720824, 4651030, 5116133, 6018980, 9302060, 10232266, 12037960, 18604120, 20464532, 25580665, 40929064, 51161330, 102322660, 204645320]

約数ペア:

[(1, 204645320), (2, 102322660), (4, 51161330), (5, 40929064), (8, 25580665), (10, 20464532), (11, 18604120), (17, 12037960), (20, 10232266), (22, 9302060), (34, 6018980), (40, 5116133), (44, 4651030), (55, 3720824), (68, 3009490), (85, 2407592), (88, 2325515), (109, 1877480), (110, 1860412), (136, 1504745), (170, 1203796), (187, 1094360), (218, 938740), (220, 930206), (251, 815320), (340, 601898), (374, 547180), (436, 469370), (440, 465103), (502, 407660), (545, 375496), (680, 300949), (748, 273590), (872, 234685), (935, 218872), (1004, 203830), (1090, 187748), (1199, 170680), (1255, 163064), (1496, 136795), (1853, 110440), (1870, 109436), (2008, 101915), (2180, 93874), (2398, 85340), (2510, 81532), (2761, 74120), (3706, 55220), (3740, 54718), (4267, 47960), (4360, 46937), (4796, 42670), (5020, 40766), (5522, 37060), (5995, 34136), (7412, 27610), (7480, 27359), (8534, 23980), (9265, 22088), (9592, 21335), (10040, 20383), (11044, 18530), (11990, 17068), (13805, 14824)]