68683280

素因数分解:

$2^4\times 5^1\times {\mathrm{401}}^1\times {\mathrm{2141}}^1$

素因数の和:2555

約数の個数: 40

約数和(自身を含む): 160161624

約数和(自身を除く): 91478344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 401, 802, 1604, 2005, 2141, 3208, 4010, 4282, 6416, 8020, 8564, 10705, 16040, 17128, 21410, 32080, 34256, 42820, 85640, 171280, 858541, 1717082, 3434164, 4292705, 6868328, 8585410, 13736656, 17170820, 34341640, 68683280]

約数ペア:

[(1, 68683280), (2, 34341640), (4, 17170820), (5, 13736656), (8, 8585410), (10, 6868328), (16, 4292705), (20, 3434164), (40, 1717082), (80, 858541), (401, 171280), (802, 85640), (1604, 42820), (2005, 34256), (2141, 32080), (3208, 21410), (4010, 17128), (4282, 16040), (6416, 10705), (8020, 8564)]