199315472

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{655643}}^1$

素因数の和:655670

約数の個数: 20

約数和(自身を含む): 406499280

約数和(自身を除く): 207183808

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 655643, 1311286, 2622572, 5245144, 10490288, 12457217, 24914434, 49828868, 99657736, 199315472]

約数ペア:

[(1, 199315472), (2, 99657736), (4, 49828868), (8, 24914434), (16, 12457217), (19, 10490288), (38, 5245144), (76, 2622572), (152, 1311286), (304, 655643)]