28255640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{100913}}^1$

素因数の和:100931

約数の個数: 32

約数和(自身を含む): 72658080

約数和(自身を除く): 44402440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 100913, 201826, 403652, 504565, 706391, 807304, 1009130, 1412782, 2018260, 2825564, 3531955, 4036520, 5651128, 7063910, 14127820, 28255640]

約数ペア:

[(1, 28255640), (2, 14127820), (4, 7063910), (5, 5651128), (7, 4036520), (8, 3531955), (10, 2825564), (14, 2018260), (20, 1412782), (28, 1009130), (35, 807304), (40, 706391), (56, 504565), (70, 403652), (140, 201826), (280, 100913)]