81922960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{146291}}^1$

素因数の和:146311

約数の個数: 40

約数和(自身を含む): 217682496

約数和(自身を除く): 135759536

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 146291, 292582, 585164, 731455, 1024037, 1170328, 1462910, 2048074, 2340656, 2925820, 4096148, 5120185, 5851640, 8192296, 10240370, 11703280, 16384592, 20480740, 40961480, 81922960]

約数ペア:

[(1, 81922960), (2, 40961480), (4, 20480740), (5, 16384592), (7, 11703280), (8, 10240370), (10, 8192296), (14, 5851640), (16, 5120185), (20, 4096148), (28, 2925820), (35, 2340656), (40, 2048074), (56, 1462910), (70, 1170328), (80, 1024037), (112, 731455), (140, 585164), (280, 292582), (560, 146291)]