397307860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1045547}}^1$

素因数の和:1045575

約数の個数: 24

約数和(自身を含む): 878260320

約数和(自身を除く): 480952460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1045547, 2091094, 4182188, 5227735, 10455470, 19865393, 20910940, 39730786, 79461572, 99326965, 198653930, 397307860]

約数ペア:

[(1, 397307860), (2, 198653930), (4, 99326965), (5, 79461572), (10, 39730786), (19, 20910940), (20, 19865393), (38, 10455470), (76, 5227735), (95, 4182188), (190, 2091094), (380, 1045547)]