81838960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{146141}}^1$

素因数の和:146161

約数の個数: 40

約数和(自身を含む): 217459296

約数和(自身を除く): 135620336

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 146141, 292282, 584564, 730705, 1022987, 1169128, 1461410, 2045974, 2338256, 2922820, 4091948, 5114935, 5845640, 8183896, 10229870, 11691280, 16367792, 20459740, 40919480, 81838960]

約数ペア:

[(1, 81838960), (2, 40919480), (4, 20459740), (5, 16367792), (7, 11691280), (8, 10229870), (10, 8183896), (14, 5845640), (16, 5114935), (20, 4091948), (28, 2922820), (35, 2338256), (40, 2045974), (56, 1461410), (70, 1169128), (80, 1022987), (112, 730705), (140, 584564), (280, 292282), (560, 146141)]