197991856

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{651289}}^1$

素因数の和:651316

約数の個数: 20

約数和(自身を含む): 403799800

約数和(自身を除く): 205807944

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 651289, 1302578, 2605156, 5210312, 10420624, 12374491, 24748982, 49497964, 98995928, 197991856]

約数ペア:

[(1, 197991856), (2, 98995928), (4, 49497964), (8, 24748982), (16, 12374491), (19, 10420624), (38, 5210312), (76, 2605156), (152, 1302578), (304, 651289)]