30775880

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1567}}^1$

素因数の和:2069

約数の個数: 32

約数和(自身を含む): 69431040

約数和(自身を除く): 38655160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1567, 1964, 2455, 3134, 3928, 4910, 6268, 7835, 9820, 12536, 15670, 19640, 31340, 62680, 769397, 1538794, 3077588, 3846985, 6155176, 7693970, 15387940, 30775880]

約数ペア:

[(1, 30775880), (2, 15387940), (4, 7693970), (5, 6155176), (8, 3846985), (10, 3077588), (20, 1538794), (40, 769397), (491, 62680), (982, 31340), (1567, 19640), (1964, 15670), (2455, 12536), (3134, 9820), (3928, 7835), (4910, 6268)]