19936580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{307}}^1$

素因数の和:524

約数の個数: 48

約数和(自身を含む): 44706816

約数和(自身を除く): 24770236

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 191, 307, 340, 382, 614, 764, 955, 1228, 1535, 1910, 3070, 3247, 3820, 5219, 6140, 6494, 10438, 12988, 16235, 20876, 26095, 32470, 52190, 58637, 64940, 104380, 117274, 234548, 293185, 586370, 996829, 1172740, 1993658, 3987316, 4984145, 9968290, 19936580]

約数ペア:

[(1, 19936580), (2, 9968290), (4, 4984145), (5, 3987316), (10, 1993658), (17, 1172740), (20, 996829), (34, 586370), (68, 293185), (85, 234548), (170, 117274), (191, 104380), (307, 64940), (340, 58637), (382, 52190), (614, 32470), (764, 26095), (955, 20876), (1228, 16235), (1535, 12988), (1910, 10438), (3070, 6494), (3247, 6140), (3820, 5219)]