145001480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{278849}}^1$

素因数の和:278873

約数の個数: 32

約数和(自身を含む): 351351000

約数和(自身を除く): 206349520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 278849, 557698, 1115396, 1394245, 2230792, 2788490, 3625037, 5576980, 7250074, 11153960, 14500148, 18125185, 29000296, 36250370, 72500740, 145001480]

約数ペア:

[(1, 145001480), (2, 72500740), (4, 36250370), (5, 29000296), (8, 18125185), (10, 14500148), (13, 11153960), (20, 7250074), (26, 5576980), (40, 3625037), (52, 2788490), (65, 2230792), (104, 1394245), (130, 1115396), (260, 557698), (520, 278849)]