67420280

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{3461}}^1$

素因数の和:3959

約数の個数: 32

約数和(自身を含む): 152051040

約数和(自身を除く): 84630760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1948, 2435, 3461, 3896, 4870, 6922, 9740, 13844, 17305, 19480, 27688, 34610, 69220, 138440, 1685507, 3371014, 6742028, 8427535, 13484056, 16855070, 33710140, 67420280]

約数ペア:

[(1, 67420280), (2, 33710140), (4, 16855070), (5, 13484056), (8, 8427535), (10, 6742028), (20, 3371014), (40, 1685507), (487, 138440), (974, 69220), (1948, 34610), (2435, 27688), (3461, 19480), (3896, 17305), (4870, 13844), (6922, 9740)]