181565660

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{2251}}^1$

素因数の和:2406

約数の個数: 48

約数和(自身を含む): 395361120

約数和(自身を除く): 213795460

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 109, 148, 185, 218, 370, 436, 545, 740, 1090, 2180, 2251, 4033, 4502, 8066, 9004, 11255, 16132, 20165, 22510, 40330, 45020, 80660, 83287, 166574, 245359, 333148, 416435, 490718, 832870, 981436, 1226795, 1665740, 2453590, 4907180, 9078283, 18156566, 36313132, 45391415, 90782830, 181565660]

約数ペア:

[(1, 181565660), (2, 90782830), (4, 45391415), (5, 36313132), (10, 18156566), (20, 9078283), (37, 4907180), (74, 2453590), (109, 1665740), (148, 1226795), (185, 981436), (218, 832870), (370, 490718), (436, 416435), (545, 333148), (740, 245359), (1090, 166574), (2180, 83287), (2251, 80660), (4033, 45020), (4502, 40330), (8066, 22510), (9004, 20165), (11255, 16132)]