12131980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{449}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 29332800

約数和(自身を除く): 17200820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 193, 386, 449, 772, 898, 965, 1351, 1796, 1930, 2245, 2702, 3143, 3860, 4490, 5404, 6286, 6755, 8980, 12572, 13510, 15715, 27020, 31430, 62860, 86657, 173314, 346628, 433285, 606599, 866570, 1213198, 1733140, 2426396, 3032995, 6065990, 12131980]

約数ペア:

[(1, 12131980), (2, 6065990), (4, 3032995), (5, 2426396), (7, 1733140), (10, 1213198), (14, 866570), (20, 606599), (28, 433285), (35, 346628), (70, 173314), (140, 86657), (193, 62860), (386, 31430), (449, 27020), (772, 15715), (898, 13510), (965, 12572), (1351, 8980), (1796, 6755), (1930, 6286), (2245, 5404), (2702, 4490), (3143, 3860)]