81340064

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:334

約数の個数: 96

約数和(自身を含む): 186701760

約数和(自身を除く): 105361696

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 41, 52, 76, 82, 104, 152, 164, 208, 247, 251, 304, 328, 416, 494, 502, 533, 608, 656, 779, 988, 1004, 1066, 1312, 1558, 1976, 2008, 2132, 3116, 3263, 3952, 4016, 4264, 4769, 6232, 6526, 7904, 8032, 8528, 9538, 10127, 10291, 12464, 13052, 17056, 19076, 20254, 20582, 24928, 26104, 38152, 40508, 41164, 52208, 61997, 76304, 81016, 82328, 104416, 123994, 133783, 152608, 162032, 164656, 195529, 247988, 267566, 324064, 329312, 391058, 495976, 535132, 782116, 991952, 1070264, 1564232, 1983904, 2140528, 2541877, 3128464, 4281056, 5083754, 6256928, 10167508, 20335016, 40670032, 81340064]

約数ペア:

[(1, 81340064), (2, 40670032), (4, 20335016), (8, 10167508), (13, 6256928), (16, 5083754), (19, 4281056), (26, 3128464), (32, 2541877), (38, 2140528), (41, 1983904), (52, 1564232), (76, 1070264), (82, 991952), (104, 782116), (152, 535132), (164, 495976), (208, 391058), (247, 329312), (251, 324064), (304, 267566), (328, 247988), (416, 195529), (494, 164656), (502, 162032), (533, 152608), (608, 133783), (656, 123994), (779, 104416), (988, 82328), (1004, 81016), (1066, 76304), (1312, 61997), (1558, 52208), (1976, 41164), (2008, 40508), (2132, 38152), (3116, 26104), (3263, 24928), (3952, 20582), (4016, 20254), (4264, 19076), (4769, 17056), (6232, 13052), (6526, 12464), (7904, 10291), (8032, 10127), (8528, 9538)]