80619670

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{1999}}^1$

素因数の和:2152

約数の個数: 32

約数和(自身を含む): 150480000

約数和(自身を除く): 69860330

約数列:

[1, 2, 5, 10, 37, 74, 109, 185, 218, 370, 545, 1090, 1999, 3998, 4033, 8066, 9995, 19990, 20165, 40330, 73963, 147926, 217891, 369815, 435782, 739630, 1089455, 2178910, 8061967, 16123934, 40309835, 80619670]

約数ペア:

[(1, 80619670), (2, 40309835), (5, 16123934), (10, 8061967), (37, 2178910), (74, 1089455), (109, 739630), (185, 435782), (218, 369815), (370, 217891), (545, 147926), (1090, 73963), (1999, 40330), (3998, 20165), (4033, 19990), (8066, 9995)]