81166930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{1789}}^1$

素因数の和:2158

約数の個数: 32

約数和(自身を含む): 157878000

約数和(自身を除く): 76711070

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 349, 698, 1745, 1789, 3490, 3578, 4537, 8945, 9074, 17890, 22685, 23257, 45370, 46514, 116285, 232570, 624361, 1248722, 3121805, 6243610, 8116693, 16233386, 40583465, 81166930]

約数ペア:

[(1, 81166930), (2, 40583465), (5, 16233386), (10, 8116693), (13, 6243610), (26, 3121805), (65, 1248722), (130, 624361), (349, 232570), (698, 116285), (1745, 46514), (1789, 45370), (3490, 23257), (3578, 22685), (4537, 17890), (8945, 9074)]