8266960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7949}}^1$

素因数の和:7975

約数の個数: 40

約数和(自身を含む): 20701800

約数和(自身を除く): 12434840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 7949, 15898, 31796, 39745, 63592, 79490, 103337, 127184, 158980, 206674, 317960, 413348, 516685, 635920, 826696, 1033370, 1653392, 2066740, 4133480, 8266960]

約数ペア:

[(1, 8266960), (2, 4133480), (4, 2066740), (5, 1653392), (8, 1033370), (10, 826696), (13, 635920), (16, 516685), (20, 413348), (26, 317960), (40, 206674), (52, 158980), (65, 127184), (80, 103337), (104, 79490), (130, 63592), (208, 39745), (260, 31796), (520, 15898), (1040, 7949)]