81137080

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{14593}}^1$

素因数の和:14743

約数の個数: 32

約数和(自身を含む): 183884400

約数和(自身を除く): 102747320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 14593, 29186, 58372, 72965, 116744, 145930, 291860, 583720, 2028427, 4056854, 8113708, 10142135, 16227416, 20284270, 40568540, 81137080]

約数ペア:

[(1, 81137080), (2, 40568540), (4, 20284270), (5, 16227416), (8, 10142135), (10, 8113708), (20, 4056854), (40, 2028427), (139, 583720), (278, 291860), (556, 145930), (695, 116744), (1112, 72965), (1390, 58372), (2780, 29186), (5560, 14593)]