280521584

素因数分解:

$2^4\times 7^1\times {\mathrm{2504657}}^1$

素因数の和:2504672

約数の個数: 20

約数和(自身を含む): 621155184

約数和(自身を除く): 340633600

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 2504657, 5009314, 10018628, 17532599, 20037256, 35065198, 40074512, 70130396, 140260792, 280521584]

約数ペア:

[(1, 280521584), (2, 140260792), (4, 70130396), (7, 40074512), (8, 35065198), (14, 20037256), (16, 17532599), (28, 10018628), (56, 5009314), (112, 2504657)]