989371580

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{661}}^1\times {\mathrm{1117}}^1$

素因数の和:1854

約数の個数: 48

約数和(自身を含む): 2113771296

約数和(自身を除く): 1124399716

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 661, 670, 1117, 1322, 1340, 2234, 2644, 3305, 4468, 5585, 6610, 11170, 13220, 22340, 44287, 74839, 88574, 149678, 177148, 221435, 299356, 374195, 442870, 738337, 748390, 885740, 1476674, 1496780, 2953348, 3691685, 7383370, 14766740, 49468579, 98937158, 197874316, 247342895, 494685790, 989371580]

約数ペア:

[(1, 989371580), (2, 494685790), (4, 247342895), (5, 197874316), (10, 98937158), (20, 49468579), (67, 14766740), (134, 7383370), (268, 3691685), (335, 2953348), (661, 1496780), (670, 1476674), (1117, 885740), (1322, 748390), (1340, 738337), (2234, 442870), (2644, 374195), (3305, 299356), (4468, 221435), (5585, 177148), (6610, 149678), (11170, 88574), (13220, 74839), (22340, 44287)]