71266360

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{161969}}^1$

素因数の和:161991

約数の個数: 32

約数和(自身を含む): 174927600

約数和(自身を除く): 103661240

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 161969, 323938, 647876, 809845, 1295752, 1619690, 1781659, 3239380, 3563318, 6478760, 7126636, 8908295, 14253272, 17816590, 35633180, 71266360]

約数ペア:

[(1, 71266360), (2, 35633180), (4, 17816590), (5, 14253272), (8, 8908295), (10, 7126636), (11, 6478760), (20, 3563318), (22, 3239380), (40, 1781659), (44, 1619690), (55, 1295752), (88, 809845), (110, 647876), (220, 323938), (440, 161969)]