81771640

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{34649}}^1$

素因数の和:34719

約数の個数: 32

約数和(自身を含む): 187110000

約数和(自身を除く): 105338360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 34649, 69298, 138596, 173245, 277192, 346490, 692980, 1385960, 2044291, 4088582, 8177164, 10221455, 16354328, 20442910, 40885820, 81771640]

約数ペア:

[(1, 81771640), (2, 40885820), (4, 20442910), (5, 16354328), (8, 10221455), (10, 8177164), (20, 4088582), (40, 2044291), (59, 1385960), (118, 692980), (236, 346490), (295, 277192), (472, 173245), (590, 138596), (1180, 69298), (2360, 34649)]