55090120

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{419}}^1$

素因数の和:622

約数の個数: 64

約数和(自身を含む): 131544000

約数和(自身を除く): 76453880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 173, 190, 346, 380, 419, 692, 760, 838, 865, 1384, 1676, 1730, 2095, 3287, 3352, 3460, 4190, 6574, 6920, 7961, 8380, 13148, 15922, 16435, 16760, 26296, 31844, 32870, 39805, 63688, 65740, 72487, 79610, 131480, 144974, 159220, 289948, 318440, 362435, 579896, 724870, 1377253, 1449740, 2754506, 2899480, 5509012, 6886265, 11018024, 13772530, 27545060, 55090120]

約数ペア:

[(1, 55090120), (2, 27545060), (4, 13772530), (5, 11018024), (8, 6886265), (10, 5509012), (19, 2899480), (20, 2754506), (38, 1449740), (40, 1377253), (76, 724870), (95, 579896), (152, 362435), (173, 318440), (190, 289948), (346, 159220), (380, 144974), (419, 131480), (692, 79610), (760, 72487), (838, 65740), (865, 63688), (1384, 39805), (1676, 32870), (1730, 31844), (2095, 26296), (3287, 16760), (3352, 16435), (3460, 15922), (4190, 13148), (6574, 8380), (6920, 7961)]