1980520

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{739}}^1$

素因数の和:817

約数の個数: 32

約数和(自身を含む): 4528800

約数和(自身を除く): 2548280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 739, 1340, 1478, 2680, 2956, 3695, 5912, 7390, 14780, 29560, 49513, 99026, 198052, 247565, 396104, 495130, 990260, 1980520]

約数ペア:

[(1, 1980520), (2, 990260), (4, 495130), (5, 396104), (8, 247565), (10, 198052), (20, 99026), (40, 49513), (67, 29560), (134, 14780), (268, 7390), (335, 5912), (536, 3695), (670, 2956), (739, 2680), (1340, 1478)]