28544920

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{6547}}^1$

素因数の和:6667

約数の個数: 32

約数和(自身を含む): 64825200

約数和(自身を除く): 36280280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 6547, 13094, 26188, 32735, 52376, 65470, 130940, 261880, 713623, 1427246, 2854492, 3568115, 5708984, 7136230, 14272460, 28544920]

約数ペア:

[(1, 28544920), (2, 14272460), (4, 7136230), (5, 5708984), (8, 3568115), (10, 2854492), (20, 1427246), (40, 713623), (109, 261880), (218, 130940), (436, 65470), (545, 52376), (872, 32735), (1090, 26188), (2180, 13094), (4360, 6547)]