19040140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{443}}^1$

素因数の和:766

約数の個数: 48

約数和(自身を含む): 45948672

約数和(自身を除く): 26908532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 307, 443, 614, 886, 1228, 1535, 1772, 2149, 2215, 3070, 3101, 4298, 4430, 6140, 6202, 8596, 8860, 10745, 12404, 15505, 21490, 31010, 42980, 62020, 136001, 272002, 544004, 680005, 952007, 1360010, 1904014, 2720020, 3808028, 4760035, 9520070, 19040140]

約数ペア:

[(1, 19040140), (2, 9520070), (4, 4760035), (5, 3808028), (7, 2720020), (10, 1904014), (14, 1360010), (20, 952007), (28, 680005), (35, 544004), (70, 272002), (140, 136001), (307, 62020), (443, 42980), (614, 31010), (886, 21490), (1228, 15505), (1535, 12404), (1772, 10745), (2149, 8860), (2215, 8596), (3070, 6202), (3101, 6140), (4298, 4430)]