90209769

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{1321}}^1$

素因数の和:1457

約数の個数: 32

約数和(自身を含む): 138587904

約数和(自身を除く): 48378135

約数列:

[1, 3, 13, 17, 39, 51, 103, 221, 309, 663, 1321, 1339, 1751, 3963, 4017, 5253, 17173, 22457, 22763, 51519, 67371, 68289, 136063, 291941, 408189, 875823, 1768819, 2313071, 5306457, 6939213, 30069923, 90209769]

約数ペア:

[(1, 90209769), (3, 30069923), (13, 6939213), (17, 5306457), (39, 2313071), (51, 1768819), (103, 875823), (221, 408189), (309, 291941), (663, 136063), (1321, 68289), (1339, 67371), (1751, 51519), (3963, 22763), (4017, 22457), (5253, 17173)]