20338376

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{587}}^1$

素因数の和:725

約数の個数: 32

約数和(自身を含む): 39372480

約数和(自身を除く): 19034104

約数列:

[1, 2, 4, 8, 61, 71, 122, 142, 244, 284, 488, 568, 587, 1174, 2348, 4331, 4696, 8662, 17324, 34648, 35807, 41677, 71614, 83354, 143228, 166708, 286456, 333416, 2542297, 5084594, 10169188, 20338376]

約数ペア:

[(1, 20338376), (2, 10169188), (4, 5084594), (8, 2542297), (61, 333416), (71, 286456), (122, 166708), (142, 143228), (244, 83354), (284, 71614), (488, 41677), (568, 35807), (587, 34648), (1174, 17324), (2348, 8662), (4331, 4696)]