278328640

素因数分解:

$2^6\times 5^1\times {\mathrm{869777}}^1$

素因数の和:869794

約数の個数: 28

約数和(自身を含む): 662770836

約数和(自身を除く): 384442196

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 869777, 1739554, 3479108, 4348885, 6958216, 8697770, 13916432, 17395540, 27832864, 34791080, 55665728, 69582160, 139164320, 278328640]

約数ペア:

[(1, 278328640), (2, 139164320), (4, 69582160), (5, 55665728), (8, 34791080), (10, 27832864), (16, 17395540), (20, 13916432), (32, 8697770), (40, 6958216), (64, 4348885), (80, 3479108), (160, 1739554), (320, 869777)]