256620008

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{294289}}^1$

素因数の和:294404

約数の個数: 16

約数和(自身を含む): 485578500

約数和(自身を除く): 228958492

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 294289, 588578, 1177156, 2354312, 32077501, 64155002, 128310004, 256620008]

約数ペア:

[(1, 256620008), (2, 128310004), (4, 64155002), (8, 32077501), (109, 2354312), (218, 1177156), (436, 588578), (872, 294289)]