319050440

素因数分解:

$2^3\times 5^1\times {\mathrm{7976261}}^1$

素因数の和:7976272

約数の個数: 16

約数和(自身を含む): 717863580

約数和(自身を除く): 398813140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 7976261, 15952522, 31905044, 39881305, 63810088, 79762610, 159525220, 319050440]

約数ペア:

[(1, 319050440), (2, 159525220), (4, 79762610), (5, 63810088), (8, 39881305), (10, 31905044), (20, 15952522), (40, 7976261)]