31027480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{467}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 76826880

約数和(自身を除く): 45799400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 151, 220, 302, 440, 467, 604, 755, 934, 1208, 1510, 1661, 1868, 2335, 3020, 3322, 3736, 4670, 5137, 6040, 6644, 8305, 9340, 10274, 13288, 16610, 18680, 20548, 25685, 33220, 41096, 51370, 66440, 70517, 102740, 141034, 205480, 282068, 352585, 564136, 705170, 775687, 1410340, 1551374, 2820680, 3102748, 3878435, 6205496, 7756870, 15513740, 31027480]

約数ペア:

[(1, 31027480), (2, 15513740), (4, 7756870), (5, 6205496), (8, 3878435), (10, 3102748), (11, 2820680), (20, 1551374), (22, 1410340), (40, 775687), (44, 705170), (55, 564136), (88, 352585), (110, 282068), (151, 205480), (220, 141034), (302, 102740), (440, 70517), (467, 66440), (604, 51370), (755, 41096), (934, 33220), (1208, 25685), (1510, 20548), (1661, 18680), (1868, 16610), (2335, 13288), (3020, 10274), (3322, 9340), (3736, 8305), (4670, 6644), (5137, 6040)]