2147420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1$

素因数の和:290

約数の個数: 48

約数和(自身を含む): 5056128

約数和(自身を除く): 2908708

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 227, 430, 454, 473, 860, 908, 946, 1135, 1892, 2270, 2365, 2497, 4540, 4730, 4994, 9460, 9761, 9988, 12485, 19522, 24970, 39044, 48805, 49940, 97610, 107371, 195220, 214742, 429484, 536855, 1073710, 2147420]

約数ペア:

[(1, 2147420), (2, 1073710), (4, 536855), (5, 429484), (10, 214742), (11, 195220), (20, 107371), (22, 97610), (43, 49940), (44, 48805), (55, 39044), (86, 24970), (110, 19522), (172, 12485), (215, 9988), (220, 9761), (227, 9460), (430, 4994), (454, 4730), (473, 4540), (860, 2497), (908, 2365), (946, 2270), (1135, 1892)]