71362870

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1\times {\mathrm{443}}^1$

素因数の和:720

約数の個数: 32

約数和(自身を含む): 130908960

約数和(自身を除く): 59546090

約数列:

[1, 2, 5, 10, 89, 178, 181, 362, 443, 445, 886, 890, 905, 1810, 2215, 4430, 16109, 32218, 39427, 78854, 80183, 80545, 160366, 161090, 197135, 394270, 400915, 801830, 7136287, 14272574, 35681435, 71362870]

約数ペア:

[(1, 71362870), (2, 35681435), (5, 14272574), (10, 7136287), (89, 801830), (178, 400915), (181, 394270), (362, 197135), (443, 161090), (445, 160366), (886, 80545), (890, 80183), (905, 78854), (1810, 39427), (2215, 32218), (4430, 16109)]