254994580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{310969}}^1$

素因数の和:311019

約数の個数: 24

約数和(自身を含む): 548551080

約数和(自身を除く): 293556500

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 310969, 621938, 1243876, 1554845, 3109690, 6219380, 12749729, 25499458, 50998916, 63748645, 127497290, 254994580]

約数ペア:

[(1, 254994580), (2, 127497290), (4, 63748645), (5, 50998916), (10, 25499458), (20, 12749729), (41, 6219380), (82, 3109690), (164, 1554845), (205, 1243876), (410, 621938), (820, 310969)]