155302580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{408691}}^1$

素因数の和:408719

約数の個数: 24

約数和(自身を含む): 343301280

約数和(自身を除く): 187998700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 408691, 817382, 1634764, 2043455, 4086910, 7765129, 8173820, 15530258, 31060516, 38825645, 77651290, 155302580]

約数ペア:

[(1, 155302580), (2, 77651290), (4, 38825645), (5, 31060516), (10, 15530258), (19, 8173820), (20, 7765129), (38, 4086910), (76, 2043455), (95, 1634764), (190, 817382), (380, 408691)]