64943740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{761}}^1$

素因数の和:1038

約数の個数: 48

約数和(自身を含む): 145170144

約数和(自身を除く): 80226404

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 251, 340, 502, 761, 1004, 1255, 1522, 2510, 3044, 3805, 4267, 5020, 7610, 8534, 12937, 15220, 17068, 21335, 25874, 42670, 51748, 64685, 85340, 129370, 191011, 258740, 382022, 764044, 955055, 1910110, 3247187, 3820220, 6494374, 12988748, 16235935, 32471870, 64943740]

約数ペア:

[(1, 64943740), (2, 32471870), (4, 16235935), (5, 12988748), (10, 6494374), (17, 3820220), (20, 3247187), (34, 1910110), (68, 955055), (85, 764044), (170, 382022), (251, 258740), (340, 191011), (502, 129370), (761, 85340), (1004, 64685), (1255, 51748), (1522, 42670), (2510, 25874), (3044, 21335), (3805, 17068), (4267, 15220), (5020, 12937), (7610, 8534)]