20056880

素因数分解:

$2^4\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1049}}^1$

素因数の和:1301

約数の個数: 40

約数和(自身を含む): 46872000

約数和(自身を除く): 26815120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239, 478, 956, 1049, 1195, 1912, 2098, 2390, 3824, 4196, 4780, 5245, 8392, 9560, 10490, 16784, 19120, 20980, 41960, 83920, 250711, 501422, 1002844, 1253555, 2005688, 2507110, 4011376, 5014220, 10028440, 20056880]

約数ペア:

[(1, 20056880), (2, 10028440), (4, 5014220), (5, 4011376), (8, 2507110), (10, 2005688), (16, 1253555), (20, 1002844), (40, 501422), (80, 250711), (239, 83920), (478, 41960), (956, 20980), (1049, 19120), (1195, 16784), (1912, 10490), (2098, 9560), (2390, 8392), (3824, 5245), (4196, 4780)]