12788140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{461}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 28717920

約数和(自身を除く): 15929780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 73, 76, 95, 146, 190, 292, 365, 380, 461, 730, 922, 1387, 1460, 1844, 2305, 2774, 4610, 5548, 6935, 8759, 9220, 13870, 17518, 27740, 33653, 35036, 43795, 67306, 87590, 134612, 168265, 175180, 336530, 639407, 673060, 1278814, 2557628, 3197035, 6394070, 12788140]

約数ペア:

[(1, 12788140), (2, 6394070), (4, 3197035), (5, 2557628), (10, 1278814), (19, 673060), (20, 639407), (38, 336530), (73, 175180), (76, 168265), (95, 134612), (146, 87590), (190, 67306), (292, 43795), (365, 35036), (380, 33653), (461, 27740), (730, 17518), (922, 13870), (1387, 9220), (1460, 8759), (1844, 6935), (2305, 5548), (2774, 4610)]