280270653

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{1171}}^1$

素因数の和:1242

約数の個数: 48

約数和(自身を含む): 450104256

約数和(自身を除く): 169833603

約数列:

[1, 3, 13, 17, 19, 39, 51, 57, 221, 247, 323, 361, 663, 741, 969, 1083, 1171, 3513, 4199, 4693, 6137, 12597, 14079, 15223, 18411, 19907, 22249, 45669, 59721, 66747, 79781, 239343, 258791, 289237, 378233, 422731, 776373, 867711, 1134699, 1268193, 4917029, 5495503, 7186427, 14751087, 16486509, 21559281, 93423551, 280270653]

約数ペア:

[(1, 280270653), (3, 93423551), (13, 21559281), (17, 16486509), (19, 14751087), (39, 7186427), (51, 5495503), (57, 4917029), (221, 1268193), (247, 1134699), (323, 867711), (361, 776373), (663, 422731), (741, 378233), (969, 289237), (1083, 258791), (1171, 239343), (3513, 79781), (4199, 66747), (4693, 59721), (6137, 45669), (12597, 22249), (14079, 19907), (15223, 18411)]