28105660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2971}}^1$

素因数の和:3034

約数の個数: 48

約数和(自身を含む): 65907072

約数和(自身を除く): 37801412

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 2971, 4730, 5942, 9460, 11884, 14855, 29710, 32681, 59420, 65362, 127753, 130724, 163405, 255506, 326810, 511012, 638765, 653620, 1277530, 1405283, 2555060, 2810566, 5621132, 7026415, 14052830, 28105660]

約数ペア:

[(1, 28105660), (2, 14052830), (4, 7026415), (5, 5621132), (10, 2810566), (11, 2555060), (20, 1405283), (22, 1277530), (43, 653620), (44, 638765), (55, 511012), (86, 326810), (110, 255506), (172, 163405), (215, 130724), (220, 127753), (430, 65362), (473, 59420), (860, 32681), (946, 29710), (1892, 14855), (2365, 11884), (2971, 9460), (4730, 5942)]