18901360

素因数分解:

$2^4\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1237}}^1$

素因数の和:1441

約数の個数: 40

約数和(自身を含む): 44211456

約数和(自身を除く): 25310096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 191, 382, 764, 955, 1237, 1528, 1910, 2474, 3056, 3820, 4948, 6185, 7640, 9896, 12370, 15280, 19792, 24740, 49480, 98960, 236267, 472534, 945068, 1181335, 1890136, 2362670, 3780272, 4725340, 9450680, 18901360]

約数ペア:

[(1, 18901360), (2, 9450680), (4, 4725340), (5, 3780272), (8, 2362670), (10, 1890136), (16, 1181335), (20, 945068), (40, 472534), (80, 236267), (191, 98960), (382, 49480), (764, 24740), (955, 19792), (1237, 15280), (1528, 12370), (1910, 9896), (2474, 7640), (3056, 6185), (3820, 4948)]