19598975

素因数分解:

$5^2\times {\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:93

約数の個数: 48

約数和(自身を含む): 29045760

約数和(自身を除く): 9446785

約数列:

[1, 5, 11, 19, 25, 31, 55, 95, 121, 155, 209, 275, 341, 475, 589, 605, 775, 1045, 1331, 1705, 2299, 2945, 3025, 3751, 5225, 6479, 6655, 8525, 11495, 14725, 18755, 25289, 32395, 33275, 41261, 57475, 71269, 93775, 126445, 161975, 206305, 356345, 632225, 783959, 1031525, 1781725, 3919795, 19598975]

約数ペア:

[(1, 19598975), (5, 3919795), (11, 1781725), (19, 1031525), (25, 783959), (31, 632225), (55, 356345), (95, 206305), (121, 161975), (155, 126445), (209, 93775), (275, 71269), (341, 57475), (475, 41261), (589, 33275), (605, 32395), (775, 25289), (1045, 18755), (1331, 14725), (1705, 11495), (2299, 8525), (2945, 6655), (3025, 6479), (3751, 5225)]