71356360

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{4139}}^1$

素因数の和:4581

約数の個数: 32

約数和(自身を含む): 160963200

約数和(自身を除く): 89606840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1724, 2155, 3448, 4139, 4310, 8278, 8620, 16556, 17240, 20695, 33112, 41390, 82780, 165560, 1783909, 3567818, 7135636, 8919545, 14271272, 17839090, 35678180, 71356360]

約数ペア:

[(1, 71356360), (2, 35678180), (4, 17839090), (5, 14271272), (8, 8919545), (10, 7135636), (20, 3567818), (40, 1783909), (431, 165560), (862, 82780), (1724, 41390), (2155, 33112), (3448, 20695), (4139, 17240), (4310, 16556), (8278, 8620)]