18976980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{28753}}^1$

素因数の和:28776

約数の個数: 48

約数和(自身を含む): 57968064

約数和(自身を除く): 38991084

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, 28753, 57506, 86259, 115012, 143765, 172518, 287530, 316283, 345036, 431295, 575060, 632566, 862590, 948849, 1265132, 1581415, 1725180, 1897698, 3162830, 3795396, 4744245, 6325660, 9488490, 18976980]

約数ペア:

[(1, 18976980), (2, 9488490), (3, 6325660), (4, 4744245), (5, 3795396), (6, 3162830), (10, 1897698), (11, 1725180), (12, 1581415), (15, 1265132), (20, 948849), (22, 862590), (30, 632566), (33, 575060), (44, 431295), (55, 345036), (60, 316283), (66, 287530), (110, 172518), (132, 143765), (165, 115012), (220, 86259), (330, 57506), (660, 28753)]