254306810

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1\times {\mathrm{1289}}^1$

素因数の和:1586

約数の個数: 32

約数和(自身を含む): 464864400

約数和(自身を除く): 210557590

約数列:

[1, 2, 5, 10, 109, 181, 218, 362, 545, 905, 1090, 1289, 1810, 2578, 6445, 12890, 19729, 39458, 98645, 140501, 197290, 233309, 281002, 466618, 702505, 1166545, 1405010, 2333090, 25430681, 50861362, 127153405, 254306810]

約数ペア:

[(1, 254306810), (2, 127153405), (5, 50861362), (10, 25430681), (109, 2333090), (181, 1405010), (218, 1166545), (362, 702505), (545, 466618), (905, 281002), (1090, 233309), (1289, 197290), (1810, 140501), (2578, 98645), (6445, 39458), (12890, 19729)]