9154540

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 20109600

約数和(自身を除く): 10955060

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 89, 139, 148, 178, 185, 278, 356, 370, 445, 556, 695, 740, 890, 1390, 1780, 2780, 3293, 5143, 6586, 10286, 12371, 13172, 16465, 20572, 24742, 25715, 32930, 49484, 51430, 61855, 65860, 102860, 123710, 247420, 457727, 915454, 1830908, 2288635, 4577270, 9154540]

約数ペア:

[(1, 9154540), (2, 4577270), (4, 2288635), (5, 1830908), (10, 915454), (20, 457727), (37, 247420), (74, 123710), (89, 102860), (139, 65860), (148, 61855), (178, 51430), (185, 49484), (278, 32930), (356, 25715), (370, 24742), (445, 20572), (556, 16465), (695, 13172), (740, 12371), (890, 10286), (1390, 6586), (1780, 5143), (2780, 3293)]