20517809296

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{269}}^1\times {\mathrm{1493}}^1$

素因数の和:1904

約数の個数: 80

約数和(自身を含む): 41615907840

約数和(自身を除く): 21098098544

約数列:

[1, 2, 4, 8, 16, 31, 62, 103, 124, 206, 248, 269, 412, 496, 538, 824, 1076, 1493, 1648, 2152, 2986, 3193, 4304, 5972, 6386, 8339, 11944, 12772, 16678, 23888, 25544, 27707, 33356, 46283, 51088, 55414, 66712, 92566, 110828, 133424, 153779, 185132, 221656, 307558, 370264, 401617, 443312, 615116, 740528, 803234, 858917, 1230232, 1606468, 1717834, 2460464, 3212936, 3435668, 4767149, 6425872, 6871336, 9534298, 12450127, 13742672, 19068596, 24900254, 38137192, 41366551, 49800508, 76274384, 82733102, 99601016, 165466204, 199202032, 330932408, 661864816, 1282363081, 2564726162, 5129452324, 10258904648, 20517809296]

約数ペア:

[(1, 20517809296), (2, 10258904648), (4, 5129452324), (8, 2564726162), (16, 1282363081), (31, 661864816), (62, 330932408), (103, 199202032), (124, 165466204), (206, 99601016), (248, 82733102), (269, 76274384), (412, 49800508), (496, 41366551), (538, 38137192), (824, 24900254), (1076, 19068596), (1493, 13742672), (1648, 12450127), (2152, 9534298), (2986, 6871336), (3193, 6425872), (4304, 4767149), (5972, 3435668), (6386, 3212936), (8339, 2460464), (11944, 1717834), (12772, 1606468), (16678, 1230232), (23888, 858917), (25544, 803234), (27707, 740528), (33356, 615116), (46283, 443312), (51088, 401617), (55414, 370264), (66712, 307558), (92566, 221656), (110828, 185132), (133424, 153779)]