20199188840

素因数分解:

$2^3\times 5^1\times {\mathrm{6709}}^1\times {\mathrm{75269}}^1$

素因数の和:81989

約数の個数: 32

約数和(自身を含む): 45455553000

約数和(自身を除く): 25256364160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6709, 13418, 26836, 33545, 53672, 67090, 75269, 134180, 150538, 268360, 301076, 376345, 602152, 752690, 1505380, 3010760, 504979721, 1009959442, 2019918884, 2524898605, 4039837768, 5049797210, 10099594420, 20199188840]

約数ペア:

[(1, 20199188840), (2, 10099594420), (4, 5049797210), (5, 4039837768), (8, 2524898605), (10, 2019918884), (20, 1009959442), (40, 504979721), (6709, 3010760), (13418, 1505380), (26836, 752690), (33545, 602152), (53672, 376345), (67090, 301076), (75269, 268360), (134180, 150538)]