65252240

素因数分解:

$2^4\times 5^1\times {\mathrm{815653}}^1$

素因数の和:815666

約数の個数: 20

約数和(自身を含む): 151711644

約数和(自身を除く): 86459404

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 815653, 1631306, 3262612, 4078265, 6525224, 8156530, 13050448, 16313060, 32626120, 65252240]

約数ペア:

[(1, 65252240), (2, 32626120), (4, 16313060), (5, 13050448), (8, 8156530), (10, 6525224), (16, 4078265), (20, 3262612), (40, 1631306), (80, 815653)]