205719160

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{65101}}^1$

素因数の和:65191

約数の個数: 32

約数和(自身を含む): 468734400

約数和(自身を除く): 263015240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 65101, 130202, 260404, 325505, 520808, 651010, 1302020, 2604040, 5142979, 10285958, 20571916, 25714895, 41143832, 51429790, 102859580, 205719160]

約数ペア:

[(1, 205719160), (2, 102859580), (4, 51429790), (5, 41143832), (8, 25714895), (10, 20571916), (20, 10285958), (40, 5142979), (79, 2604040), (158, 1302020), (316, 651010), (395, 520808), (632, 325505), (790, 260404), (1580, 130202), (3160, 65101)]