20816059904

素因数分解:

$2^9\times {\mathrm{17}}^1\times {\mathrm{691}}^1\times {\mathrm{3461}}^1$

素因数の和:4187

約数の個数: 80

約数和(自身を含む): 44114493456

約数和(自身を除く): 23298433552

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 512, 544, 691, 1088, 1382, 2176, 2764, 3461, 4352, 5528, 6922, 8704, 11056, 11747, 13844, 22112, 23494, 27688, 44224, 46988, 55376, 58837, 88448, 93976, 110752, 117674, 176896, 187952, 221504, 235348, 353792, 375904, 443008, 470696, 751808, 886016, 941392, 1503616, 1772032, 1882784, 2391551, 3007232, 3765568, 4783102, 6014464, 7531136, 9566204, 15062272, 19132408, 30124544, 38264816, 40656367, 76529632, 81312734, 153059264, 162625468, 306118528, 325250936, 612237056, 650501872, 1224474112, 1301003744, 2602007488, 5204014976, 10408029952, 20816059904]

約数ペア:

[(1, 20816059904), (2, 10408029952), (4, 5204014976), (8, 2602007488), (16, 1301003744), (17, 1224474112), (32, 650501872), (34, 612237056), (64, 325250936), (68, 306118528), (128, 162625468), (136, 153059264), (256, 81312734), (272, 76529632), (512, 40656367), (544, 38264816), (691, 30124544), (1088, 19132408), (1382, 15062272), (2176, 9566204), (2764, 7531136), (3461, 6014464), (4352, 4783102), (5528, 3765568), (6922, 3007232), (8704, 2391551), (11056, 1882784), (11747, 1772032), (13844, 1503616), (22112, 941392), (23494, 886016), (27688, 751808), (44224, 470696), (46988, 443008), (55376, 375904), (58837, 353792), (88448, 235348), (93976, 221504), (110752, 187952), (117674, 176896)]