20147921264

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{206197}}^1$

素因数の和:206433

約数の個数: 40

約数和(自身を含む): 40500586368

約数和(自身を除く): 20352665104

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 197, 248, 394, 496, 788, 1576, 3152, 6107, 12214, 24428, 48856, 97712, 206197, 412394, 824788, 1649576, 3299152, 6392107, 12784214, 25568428, 40620809, 51136856, 81241618, 102273712, 162483236, 324966472, 649932944, 1259245079, 2518490158, 5036980316, 10073960632, 20147921264]

約数ペア:

[(1, 20147921264), (2, 10073960632), (4, 5036980316), (8, 2518490158), (16, 1259245079), (31, 649932944), (62, 324966472), (124, 162483236), (197, 102273712), (248, 81241618), (394, 51136856), (496, 40620809), (788, 25568428), (1576, 12784214), (3152, 6392107), (6107, 3299152), (12214, 1649576), (24428, 824788), (48856, 412394), (97712, 206197)]