64839856

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{213289}}^1$

素因数の和:213316

約数の個数: 20

約数和(自身を含む): 132239800

約数和(自身を除く): 67399944

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 213289, 426578, 853156, 1706312, 3412624, 4052491, 8104982, 16209964, 32419928, 64839856]

約数ペア:

[(1, 64839856), (2, 32419928), (4, 16209964), (8, 8104982), (16, 4052491), (19, 3412624), (38, 1706312), (76, 853156), (152, 426578), (304, 213289)]