28220060

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128273}}^1$

素因数の和:128293

約数の個数: 24

約数和(自身を含む): 64650096

約数和(自身を除く): 36430036

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 128273, 256546, 513092, 641365, 1282730, 1411003, 2565460, 2822006, 5644012, 7055015, 14110030, 28220060]

約数ペア:

[(1, 28220060), (2, 14110030), (4, 7055015), (5, 5644012), (10, 2822006), (11, 2565460), (20, 1411003), (22, 1282730), (44, 641365), (55, 513092), (110, 256546), (220, 128273)]