81851840

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{36541}}^1$

素因数の和:36565

約数の個数: 56

約数和(自身を含む): 222760032

約数和(自身を除く): 140908192

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 36541, 73082, 146164, 182705, 255787, 292328, 365410, 511574, 584656, 730820, 1023148, 1169312, 1278935, 1461640, 2046296, 2338624, 2557870, 2923280, 4092592, 5115740, 5846560, 8185184, 10231480, 11693120, 16370368, 20462960, 40925920, 81851840]

約数ペア:

[(1, 81851840), (2, 40925920), (4, 20462960), (5, 16370368), (7, 11693120), (8, 10231480), (10, 8185184), (14, 5846560), (16, 5115740), (20, 4092592), (28, 2923280), (32, 2557870), (35, 2338624), (40, 2046296), (56, 1461640), (64, 1278935), (70, 1169312), (80, 1023148), (112, 730820), (140, 584656), (160, 511574), (224, 365410), (280, 292328), (320, 255787), (448, 182705), (560, 146164), (1120, 73082), (2240, 36541)]