19143080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{313}}^1$

素因数の和:474

約数の個数: 64

約数和(自身を含む): 47476800

約数和(自身を除く): 28333720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 139, 220, 278, 313, 440, 556, 626, 695, 1112, 1252, 1390, 1529, 1565, 2504, 2780, 3058, 3130, 3443, 5560, 6116, 6260, 6886, 7645, 12232, 12520, 13772, 15290, 17215, 27544, 30580, 34430, 43507, 61160, 68860, 87014, 137720, 174028, 217535, 348056, 435070, 478577, 870140, 957154, 1740280, 1914308, 2392885, 3828616, 4785770, 9571540, 19143080]

約数ペア:

[(1, 19143080), (2, 9571540), (4, 4785770), (5, 3828616), (8, 2392885), (10, 1914308), (11, 1740280), (20, 957154), (22, 870140), (40, 478577), (44, 435070), (55, 348056), (88, 217535), (110, 174028), (139, 137720), (220, 87014), (278, 68860), (313, 61160), (440, 43507), (556, 34430), (626, 30580), (695, 27544), (1112, 17215), (1252, 15290), (1390, 13772), (1529, 12520), (1565, 12232), (2504, 7645), (2780, 6886), (3058, 6260), (3130, 6116), (3443, 5560)]