12708920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{45389}}^1$

素因数の和:45407

約数の個数: 32

約数和(自身を含む): 32680800

約数和(自身を除く): 19971880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 45389, 90778, 181556, 226945, 317723, 363112, 453890, 635446, 907780, 1270892, 1588615, 1815560, 2541784, 3177230, 6354460, 12708920]

約数ペア:

[(1, 12708920), (2, 6354460), (4, 3177230), (5, 2541784), (7, 1815560), (8, 1588615), (10, 1270892), (14, 907780), (20, 635446), (28, 453890), (35, 363112), (40, 317723), (56, 226945), (70, 181556), (140, 90778), (280, 45389)]