20644984

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:184

約数の個数: 64

約数和(自身を含む): 43156800

約数和(自身を除く): 22511816

約数列:

[1, 2, 4, 8, 23, 29, 46, 53, 58, 73, 92, 106, 116, 146, 184, 212, 232, 292, 424, 584, 667, 1219, 1334, 1537, 1679, 2117, 2438, 2668, 3074, 3358, 3869, 4234, 4876, 5336, 6148, 6716, 7738, 8468, 9752, 12296, 13432, 15476, 16936, 30952, 35351, 48691, 70702, 88987, 97382, 112201, 141404, 177974, 194764, 224402, 282808, 355948, 389528, 448804, 711896, 897608, 2580623, 5161246, 10322492, 20644984]

約数ペア:

[(1, 20644984), (2, 10322492), (4, 5161246), (8, 2580623), (23, 897608), (29, 711896), (46, 448804), (53, 389528), (58, 355948), (73, 282808), (92, 224402), (106, 194764), (116, 177974), (146, 141404), (184, 112201), (212, 97382), (232, 88987), (292, 70702), (424, 48691), (584, 35351), (667, 30952), (1219, 16936), (1334, 15476), (1537, 13432), (1679, 12296), (2117, 9752), (2438, 8468), (2668, 7738), (3074, 6716), (3358, 6148), (3869, 5336), (4234, 4876)]