1277451880

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{449807}}^1$

素因数の和:449889

約数の個数: 32

約数和(自身を含む): 2914755840

約数和(自身を除く): 1637303960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 449807, 899614, 1799228, 2249035, 3598456, 4498070, 8996140, 17992280, 31936297, 63872594, 127745188, 159681485, 255490376, 319362970, 638725940, 1277451880]

約数ペア:

[(1, 1277451880), (2, 638725940), (4, 319362970), (5, 255490376), (8, 159681485), (10, 127745188), (20, 63872594), (40, 31936297), (71, 17992280), (142, 8996140), (284, 4498070), (355, 3598456), (568, 2249035), (710, 1799228), (1420, 899614), (2840, 449807)]