15004420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 32820480

約数和(自身を除く): 17816060

約数列:

[1, 2, 4, 5, 10, 20, 43, 73, 86, 146, 172, 215, 239, 292, 365, 430, 478, 730, 860, 956, 1195, 1460, 2390, 3139, 4780, 6278, 10277, 12556, 15695, 17447, 20554, 31390, 34894, 41108, 51385, 62780, 69788, 87235, 102770, 174470, 205540, 348940, 750221, 1500442, 3000884, 3751105, 7502210, 15004420]

約数ペア:

[(1, 15004420), (2, 7502210), (4, 3751105), (5, 3000884), (10, 1500442), (20, 750221), (43, 348940), (73, 205540), (86, 174470), (146, 102770), (172, 87235), (215, 69788), (239, 62780), (292, 51385), (365, 41108), (430, 34894), (478, 31390), (730, 20554), (860, 17447), (956, 15695), (1195, 12556), (1460, 10277), (2390, 6278), (3139, 4780)]