28408545

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1979}}^1$

素因数の和:2030

約数の個数: 48

約数和(自身を含む): 55598400

約数和(自身を除く): 27189855

約数列:

[1, 3, 5, 9, 11, 15, 29, 33, 45, 55, 87, 99, 145, 165, 261, 319, 435, 495, 957, 1305, 1595, 1979, 2871, 4785, 5937, 9895, 14355, 17811, 21769, 29685, 57391, 65307, 89055, 108845, 172173, 195921, 286955, 326535, 516519, 631301, 860865, 979605, 1893903, 2582595, 3156505, 5681709, 9469515, 28408545]

約数ペア:

[(1, 28408545), (3, 9469515), (5, 5681709), (9, 3156505), (11, 2582595), (15, 1893903), (29, 979605), (33, 860865), (45, 631301), (55, 516519), (87, 326535), (99, 286955), (145, 195921), (165, 172173), (261, 108845), (319, 89055), (435, 65307), (495, 57391), (957, 29685), (1305, 21769), (1595, 17811), (1979, 14355), (2871, 9895), (4785, 5937)]