51997220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{13903}}^1$

素因数の和:13940

約数の個数: 48

約数和(自身を含む): 126137088

約数和(自身を除く): 74139868

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 13903, 27806, 55612, 69515, 139030, 152933, 236351, 278060, 305866, 472702, 611732, 764665, 945404, 1181755, 1529330, 2363510, 2599861, 3058660, 4727020, 5199722, 10399444, 12999305, 25998610, 51997220]

約数ペア:

[(1, 51997220), (2, 25998610), (4, 12999305), (5, 10399444), (10, 5199722), (11, 4727020), (17, 3058660), (20, 2599861), (22, 2363510), (34, 1529330), (44, 1181755), (55, 945404), (68, 764665), (85, 611732), (110, 472702), (170, 305866), (187, 278060), (220, 236351), (340, 152933), (374, 139030), (748, 69515), (935, 55612), (1870, 27806), (3740, 13903)]