18280020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{27697}}^1$

素因数の和:27720

約数の個数: 48

約数和(自身を含む): 55839168

約数和(自身を除く): 37559148

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 27697, 55394, 83091, 110788, 138485, 166182, 276970, 304667, 332364, 415455, 553940, 609334, 830910, 914001, 1218668, 1523335, 1661820, 1828002, 3046670, 3656004, 4570005, 6093340, 9140010, 18280020]

約数ペア:

[(1, 18280020), (2, 9140010), (3, 6093340), (4, 4570005), (5, 3656004), (6, 3046670), (10, 1828002), (11, 1661820), (12, 1523335), (15, 1218668), (20, 914001), (22, 830910), (30, 609334), (33, 553940), (44, 415455), (55, 332364), (60, 304667), (66, 276970), (110, 166182), (132, 138485), (165, 110788), (220, 83091), (330, 55394), (660, 27697)]