20281328

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{34259}}^1$

素因数の和:34304

約数の個数: 20

約数和(自身を含む): 40358280

約数和(自身を除く): 20076952

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 34259, 68518, 137036, 274072, 548144, 1267583, 2535166, 5070332, 10140664, 20281328]

約数ペア:

[(1, 20281328), (2, 10140664), (4, 5070332), (8, 2535166), (16, 1267583), (37, 548144), (74, 274072), (148, 137036), (296, 68518), (592, 34259)]