18911727805

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{1901}}^1$

素因数の和:2134

約数の個数: 64

約数和(自身を含む): 25964582400

約数和(自身を除く): 7052854595

約数列:

[1, 5, 19, 23, 29, 95, 115, 145, 157, 437, 551, 667, 785, 1901, 2185, 2755, 2983, 3335, 3611, 4553, 9505, 12673, 14915, 18055, 22765, 36119, 43723, 55129, 63365, 68609, 86507, 104719, 180595, 218615, 275645, 298457, 343045, 432535, 523595, 830737, 1047451, 1267967, 1492285, 1989661, 4153685, 5237255, 5670683, 6339835, 6864511, 8655253, 9948305, 24091373, 28353415, 34322555, 43276265, 120456865, 130425709, 164449807, 199070819, 652128545, 822249035, 995354095, 3782345561, 18911727805]

約数ペア:

[(1, 18911727805), (5, 3782345561), (19, 995354095), (23, 822249035), (29, 652128545), (95, 199070819), (115, 164449807), (145, 130425709), (157, 120456865), (437, 43276265), (551, 34322555), (667, 28353415), (785, 24091373), (1901, 9948305), (2185, 8655253), (2755, 6864511), (2983, 6339835), (3335, 5670683), (3611, 5237255), (4553, 4153685), (9505, 1989661), (12673, 1492285), (14915, 1267967), (18055, 1047451), (22765, 830737), (36119, 523595), (43723, 432535), (55129, 343045), (63365, 298457), (68609, 275645), (86507, 218615), (104719, 180595)]