15505780

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1579}}^1$

素因数の和:2079

約数の個数: 24

約数和(自身を含む): 32649120

約数和(自身を除く): 17143340

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1579, 1964, 2455, 3158, 4910, 6316, 7895, 9820, 15790, 31580, 775289, 1550578, 3101156, 3876445, 7752890, 15505780]

約数ペア:

[(1, 15505780), (2, 7752890), (4, 3876445), (5, 3101156), (10, 1550578), (20, 775289), (491, 31580), (982, 15790), (1579, 9820), (1964, 7895), (2455, 6316), (3158, 4910)]