78820154

素因数分解:

$2^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{12539}}^1$

素因数の和:12997

約数の個数: 16

約数和(自身を含む): 135432000

約数和(自身を除く): 56611846

約数列:

[1, 2, 7, 14, 449, 898, 3143, 6286, 12539, 25078, 87773, 175546, 5630011, 11260022, 39410077, 78820154]

約数ペア:

[(1, 78820154), (2, 39410077), (7, 11260022), (14, 5630011), (449, 175546), (898, 87773), (3143, 25078), (6286, 12539)]