20576220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{48991}}^1$

素因数の和:49010

約数の個数: 48

約数和(自身を含む): 65845248

約数和(自身を除く): 45269028

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 48991, 97982, 146973, 195964, 244955, 293946, 342937, 489910, 587892, 685874, 734865, 979820, 1028811, 1371748, 1469730, 1714685, 2057622, 2939460, 3429370, 4115244, 5144055, 6858740, 10288110, 20576220]

約数ペア:

[(1, 20576220), (2, 10288110), (3, 6858740), (4, 5144055), (5, 4115244), (6, 3429370), (7, 2939460), (10, 2057622), (12, 1714685), (14, 1469730), (15, 1371748), (20, 1028811), (21, 979820), (28, 734865), (30, 685874), (35, 587892), (42, 489910), (60, 342937), (70, 293946), (84, 244955), (105, 195964), (140, 146973), (210, 97982), (420, 48991)]