20449160

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{337}}^1$

素因数の和:426

約数の個数: 64

約数和(自身を含む): 48550320

約数和(自身を除く): 28101160

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 41, 74, 82, 148, 164, 185, 205, 296, 328, 337, 370, 410, 674, 740, 820, 1348, 1480, 1517, 1640, 1685, 2696, 3034, 3370, 6068, 6740, 7585, 12136, 12469, 13480, 13817, 15170, 24938, 27634, 30340, 49876, 55268, 60680, 62345, 69085, 99752, 110536, 124690, 138170, 249380, 276340, 498760, 511229, 552680, 1022458, 2044916, 2556145, 4089832, 5112290, 10224580, 20449160]

約数ペア:

[(1, 20449160), (2, 10224580), (4, 5112290), (5, 4089832), (8, 2556145), (10, 2044916), (20, 1022458), (37, 552680), (40, 511229), (41, 498760), (74, 276340), (82, 249380), (148, 138170), (164, 124690), (185, 110536), (205, 99752), (296, 69085), (328, 62345), (337, 60680), (370, 55268), (410, 49876), (674, 30340), (740, 27634), (820, 24938), (1348, 15170), (1480, 13817), (1517, 13480), (1640, 12469), (1685, 12136), (2696, 7585), (3034, 6740), (3370, 6068)]