990291216

素因数分解:

$2^4\times 3^1\times {\mathrm{2161}}^1\times {\mathrm{9547}}^1$

素因数の和:11719

約数の個数: 40

約数和(自身を含む): 2559704224

約数和(自身を除く): 1569413008

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 2161, 4322, 6483, 8644, 9547, 12966, 17288, 19094, 25932, 28641, 34576, 38188, 51864, 57282, 76376, 103728, 114564, 152752, 229128, 458256, 20631067, 41262134, 61893201, 82524268, 123786402, 165048536, 247572804, 330097072, 495145608, 990291216]

約数ペア:

[(1, 990291216), (2, 495145608), (3, 330097072), (4, 247572804), (6, 165048536), (8, 123786402), (12, 82524268), (16, 61893201), (24, 41262134), (48, 20631067), (2161, 458256), (4322, 229128), (6483, 152752), (8644, 114564), (9547, 103728), (12966, 76376), (17288, 57282), (19094, 51864), (25932, 38188), (28641, 34576)]