54541420

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 117089280

約数和(自身を除く): 62547860

約数列:

[1, 2, 4, 5, 10, 20, 109, 127, 197, 218, 254, 394, 436, 508, 545, 635, 788, 985, 1090, 1270, 1970, 2180, 2540, 3940, 13843, 21473, 25019, 27686, 42946, 50038, 55372, 69215, 85892, 100076, 107365, 125095, 138430, 214730, 250190, 276860, 429460, 500380, 2727071, 5454142, 10908284, 13635355, 27270710, 54541420]

約数ペア:

[(1, 54541420), (2, 27270710), (4, 13635355), (5, 10908284), (10, 5454142), (20, 2727071), (109, 500380), (127, 429460), (197, 276860), (218, 250190), (254, 214730), (394, 138430), (436, 125095), (508, 107365), (545, 100076), (635, 85892), (788, 69215), (985, 55372), (1090, 50038), (1270, 42946), (1970, 27686), (2180, 25019), (2540, 21473), (3940, 13843)]