313620920

素因数分解:

$2^3\times 5^1\times {\mathrm{7840523}}^1$

素因数の和:7840534

約数の個数: 16

約数和(自身を含む): 705647160

約数和(自身を除く): 392026240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 7840523, 15681046, 31362092, 39202615, 62724184, 78405230, 156810460, 313620920]

約数ペア:

[(1, 313620920), (2, 156810460), (4, 78405230), (5, 62724184), (8, 39202615), (10, 31362092), (20, 15681046), (40, 7840523)]