2788335

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 5436288

約数和(自身を除く): 2647953

約数列:

[1, 3, 5, 9, 11, 15, 33, 43, 45, 55, 99, 129, 131, 165, 215, 387, 393, 473, 495, 645, 655, 1179, 1419, 1441, 1935, 1965, 2365, 4257, 4323, 5633, 5895, 7095, 7205, 12969, 16899, 21285, 21615, 28165, 50697, 61963, 64845, 84495, 185889, 253485, 309815, 557667, 929445, 2788335]

約数ペア:

[(1, 2788335), (3, 929445), (5, 557667), (9, 309815), (11, 253485), (15, 185889), (33, 84495), (43, 64845), (45, 61963), (55, 50697), (99, 28165), (129, 21615), (131, 21285), (165, 16899), (215, 12969), (387, 7205), (393, 7095), (473, 5895), (495, 5633), (645, 4323), (655, 4257), (1179, 2365), (1419, 1965), (1441, 1935)]