78826480

素因数分解:

$2^4\times 5^1\times {\mathrm{985331}}^1$

素因数の和:985344

約数の個数: 20

約数和(自身を含む): 183271752

約数和(自身を除く): 104445272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 985331, 1970662, 3941324, 4926655, 7882648, 9853310, 15765296, 19706620, 39413240, 78826480]

約数ペア:

[(1, 78826480), (2, 39413240), (4, 19706620), (5, 15765296), (8, 9853310), (10, 7882648), (16, 4926655), (20, 3941324), (40, 1970662), (80, 985331)]