19094020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{379}}^1$

素因数の和:628

約数の個数: 48

約数和(自身を含む): 44049600

約数和(自身を除く): 24955580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 229, 379, 458, 758, 916, 1145, 1516, 1895, 2290, 2519, 3790, 4169, 4580, 5038, 7580, 8338, 10076, 12595, 16676, 20845, 25190, 41690, 50380, 83380, 86791, 173582, 347164, 433955, 867910, 954701, 1735820, 1909402, 3818804, 4773505, 9547010, 19094020]

約数ペア:

[(1, 19094020), (2, 9547010), (4, 4773505), (5, 3818804), (10, 1909402), (11, 1735820), (20, 954701), (22, 867910), (44, 433955), (55, 347164), (110, 173582), (220, 86791), (229, 83380), (379, 50380), (458, 41690), (758, 25190), (916, 20845), (1145, 16676), (1516, 12595), (1895, 10076), (2290, 8338), (2519, 7580), (3790, 5038), (4169, 4580)]