71342920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{162143}}^1$

素因数の和:162165

約数の個数: 32

約数和(自身を含む): 175115520

約数和(自身を除く): 103772600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 162143, 324286, 648572, 810715, 1297144, 1621430, 1783573, 3242860, 3567146, 6485720, 7134292, 8917865, 14268584, 17835730, 35671460, 71342920]

約数ペア:

[(1, 71342920), (2, 35671460), (4, 17835730), (5, 14268584), (8, 8917865), (10, 7134292), (11, 6485720), (20, 3567146), (22, 3242860), (40, 1783573), (44, 1621430), (55, 1297144), (88, 810715), (110, 648572), (220, 324286), (440, 162143)]