20815450

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{21911}}^1$

素因数の和:21942

約数の個数: 24

約数和(自身を含む): 40756320

約数和(自身を除く): 19940870

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 190, 475, 950, 21911, 43822, 109555, 219110, 416309, 547775, 832618, 1095550, 2081545, 4163090, 10407725, 20815450]

約数ペア:

[(1, 20815450), (2, 10407725), (5, 4163090), (10, 2081545), (19, 1095550), (25, 832618), (38, 547775), (50, 416309), (95, 219110), (190, 109555), (475, 43822), (950, 21911)]