28910020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{76079}}^1$

素因数の和:76107

約数の個数: 24

約数和(自身を含む): 63907200

約数和(自身を除く): 34997180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 76079, 152158, 304316, 380395, 760790, 1445501, 1521580, 2891002, 5782004, 7227505, 14455010, 28910020]

約数ペア:

[(1, 28910020), (2, 14455010), (4, 7227505), (5, 5782004), (10, 2891002), (19, 1521580), (20, 1445501), (38, 760790), (76, 380395), (95, 304316), (190, 152158), (380, 76079)]