127732040

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{8209}}^1$

素因数の和:8609

約数の個数: 32

約数和(自身を含む): 288171000

約数和(自身を除く): 160438960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 7780, 8209, 15560, 16418, 32836, 41045, 65672, 82090, 164180, 328360, 3193301, 6386602, 12773204, 15966505, 25546408, 31933010, 63866020, 127732040]

約数ペア:

[(1, 127732040), (2, 63866020), (4, 31933010), (5, 25546408), (8, 15966505), (10, 12773204), (20, 6386602), (40, 3193301), (389, 328360), (778, 164180), (1556, 82090), (1945, 65672), (3112, 41045), (3890, 32836), (7780, 16418), (8209, 15560)]