18977970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{439}}^1$

素因数の和:591

約数の個数: 64

約数和(自身を含む): 50181120

約数和(自身を除く): 31203150

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 131, 165, 262, 330, 393, 439, 655, 786, 878, 1310, 1317, 1441, 1965, 2195, 2634, 2882, 3930, 4323, 4390, 4829, 6585, 7205, 8646, 9658, 13170, 14410, 14487, 21615, 24145, 28974, 43230, 48290, 57509, 72435, 115018, 144870, 172527, 287545, 345054, 575090, 632599, 862635, 1265198, 1725270, 1897797, 3162995, 3795594, 6325990, 9488985, 18977970]

約数ペア:

[(1, 18977970), (2, 9488985), (3, 6325990), (5, 3795594), (6, 3162995), (10, 1897797), (11, 1725270), (15, 1265198), (22, 862635), (30, 632599), (33, 575090), (55, 345054), (66, 287545), (110, 172527), (131, 144870), (165, 115018), (262, 72435), (330, 57509), (393, 48290), (439, 43230), (655, 28974), (786, 24145), (878, 21615), (1310, 14487), (1317, 14410), (1441, 13170), (1965, 9658), (2195, 8646), (2634, 7205), (2882, 6585), (3930, 4829), (4323, 4390)]