28677560

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16673}}^1$

素因数の和:16727

約数の個数: 32

約数和(自身を含む): 66029040

約数和(自身を除く): 37351480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 16673, 33346, 66692, 83365, 133384, 166730, 333460, 666920, 716939, 1433878, 2867756, 3584695, 5735512, 7169390, 14338780, 28677560]

約数ペア:

[(1, 28677560), (2, 14338780), (4, 7169390), (5, 5735512), (8, 3584695), (10, 2867756), (20, 1433878), (40, 716939), (43, 666920), (86, 333460), (172, 166730), (215, 133384), (344, 83365), (430, 66692), (860, 33346), (1720, 16673)]