78721904

素因数分解:

$2^4\times {\mathrm{2129}}^1\times {\mathrm{2311}}^1$

素因数の和:4448

約数の個数: 20

約数和(自身を含む): 152661360

約数和(自身を除く): 73939456

約数列:

[1, 2, 4, 8, 16, 2129, 2311, 4258, 4622, 8516, 9244, 17032, 18488, 34064, 36976, 4920119, 9840238, 19680476, 39360952, 78721904]

約数ペア:

[(1, 78721904), (2, 39360952), (4, 19680476), (8, 9840238), (16, 4920119), (2129, 36976), (2311, 34064), (4258, 18488), (4622, 17032), (8516, 9244)]