27916035

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1999}}^1$

素因数の和:2040

約数の個数: 48

約数和(自身を含む): 54720000

約数和(自身を除く): 26803965

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 49, 57, 95, 105, 133, 147, 245, 285, 399, 665, 735, 931, 1995, 1999, 2793, 4655, 5997, 9995, 13965, 13993, 29985, 37981, 41979, 69965, 97951, 113943, 189905, 209895, 265867, 293853, 489755, 569715, 797601, 1329335, 1469265, 1861069, 3988005, 5583207, 9305345, 27916035]

約数ペア:

[(1, 27916035), (3, 9305345), (5, 5583207), (7, 3988005), (15, 1861069), (19, 1469265), (21, 1329335), (35, 797601), (49, 569715), (57, 489755), (95, 293853), (105, 265867), (133, 209895), (147, 189905), (245, 113943), (285, 97951), (399, 69965), (665, 41979), (735, 37981), (931, 29985), (1995, 13993), (1999, 13965), (2793, 9995), (4655, 5997)]