123247640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1\times {\mathrm{337}}^1$

素因数の和:612

約数の個数: 64

約数和(自身を含む): 286191360

約数和(自身を除く): 162943720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 223, 328, 337, 410, 446, 674, 820, 892, 1115, 1348, 1640, 1685, 1784, 2230, 2696, 3370, 4460, 6740, 8920, 9143, 13480, 13817, 18286, 27634, 36572, 45715, 55268, 69085, 73144, 75151, 91430, 110536, 138170, 150302, 182860, 276340, 300604, 365720, 375755, 552680, 601208, 751510, 1503020, 3006040, 3081191, 6162382, 12324764, 15405955, 24649528, 30811910, 61623820, 123247640]

約数ペア:

[(1, 123247640), (2, 61623820), (4, 30811910), (5, 24649528), (8, 15405955), (10, 12324764), (20, 6162382), (40, 3081191), (41, 3006040), (82, 1503020), (164, 751510), (205, 601208), (223, 552680), (328, 375755), (337, 365720), (410, 300604), (446, 276340), (674, 182860), (820, 150302), (892, 138170), (1115, 110536), (1348, 91430), (1640, 75151), (1685, 73144), (1784, 69085), (2230, 55268), (2696, 45715), (3370, 36572), (4460, 27634), (6740, 18286), (8920, 13817), (9143, 13480)]