20845140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{3373}}^1$

素因数の和:3488

約数の個数: 48

約数和(自身を含む): 58950528

約数和(自身を除く): 38105388

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 103, 206, 309, 412, 515, 618, 1030, 1236, 1545, 2060, 3090, 3373, 6180, 6746, 10119, 13492, 16865, 20238, 33730, 40476, 50595, 67460, 101190, 202380, 347419, 694838, 1042257, 1389676, 1737095, 2084514, 3474190, 4169028, 5211285, 6948380, 10422570, 20845140]

約数ペア:

[(1, 20845140), (2, 10422570), (3, 6948380), (4, 5211285), (5, 4169028), (6, 3474190), (10, 2084514), (12, 1737095), (15, 1389676), (20, 1042257), (30, 694838), (60, 347419), (103, 202380), (206, 101190), (309, 67460), (412, 50595), (515, 40476), (618, 33730), (1030, 20238), (1236, 16865), (1545, 13492), (2060, 10119), (3090, 6746), (3373, 6180)]