2639890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{233}}^1$

素因数の和:354

約数の個数: 32

約数和(自身を含む): 5256576

約数和(自身を除く): 2616686

約数列:

[1, 2, 5, 10, 11, 22, 55, 103, 110, 206, 233, 466, 515, 1030, 1133, 1165, 2266, 2330, 2563, 5126, 5665, 11330, 12815, 23999, 25630, 47998, 119995, 239990, 263989, 527978, 1319945, 2639890]

約数ペア:

[(1, 2639890), (2, 1319945), (5, 527978), (10, 263989), (11, 239990), (22, 119995), (55, 47998), (103, 25630), (110, 23999), (206, 12815), (233, 11330), (466, 5665), (515, 5126), (1030, 2563), (1133, 2330), (1165, 2266)]