18975660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{28751}}^1$

素因数の和:28774

約数の個数: 48

約数和(自身を含む): 57964032

約数和(自身を除く): 38988372

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, 28751, 57502, 86253, 115004, 143755, 172506, 287510, 316261, 345012, 431265, 575020, 632522, 862530, 948783, 1265044, 1581305, 1725060, 1897566, 3162610, 3795132, 4743915, 6325220, 9487830, 18975660]

約数ペア:

[(1, 18975660), (2, 9487830), (3, 6325220), (4, 4743915), (5, 3795132), (6, 3162610), (10, 1897566), (11, 1725060), (12, 1581305), (15, 1265044), (20, 948783), (22, 862530), (30, 632522), (33, 575020), (44, 431265), (55, 345012), (60, 316261), (66, 287510), (110, 172506), (132, 143755), (165, 115004), (220, 86253), (330, 57502), (660, 28751)]