18669540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{379}}^1\times {\mathrm{821}}^1$

素因数の和:1212

約数の個数: 48

約数和(自身を含む): 52476480

約数和(自身を除く): 33806940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 379, 758, 821, 1137, 1516, 1642, 1895, 2274, 2463, 3284, 3790, 4105, 4548, 4926, 5685, 7580, 8210, 9852, 11370, 12315, 16420, 22740, 24630, 49260, 311159, 622318, 933477, 1244636, 1555795, 1866954, 3111590, 3733908, 4667385, 6223180, 9334770, 18669540]

約数ペア:

[(1, 18669540), (2, 9334770), (3, 6223180), (4, 4667385), (5, 3733908), (6, 3111590), (10, 1866954), (12, 1555795), (15, 1244636), (20, 933477), (30, 622318), (60, 311159), (379, 49260), (758, 24630), (821, 22740), (1137, 16420), (1516, 12315), (1642, 11370), (1895, 9852), (2274, 8210), (2463, 7580), (3284, 5685), (3790, 4926), (4105, 4548)]