19648660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1783}}^1$

素因数の和:1840

約数の個数: 48

約数和(自身を含む): 44956800

約数和(自身を除く): 25308140

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 290, 380, 551, 580, 1102, 1783, 2204, 2755, 3566, 5510, 7132, 8915, 11020, 17830, 33877, 35660, 51707, 67754, 103414, 135508, 169385, 206828, 258535, 338770, 517070, 677540, 982433, 1034140, 1964866, 3929732, 4912165, 9824330, 19648660]

約数ペア:

[(1, 19648660), (2, 9824330), (4, 4912165), (5, 3929732), (10, 1964866), (19, 1034140), (20, 982433), (29, 677540), (38, 517070), (58, 338770), (76, 258535), (95, 206828), (116, 169385), (145, 135508), (190, 103414), (290, 67754), (380, 51707), (551, 35660), (580, 33877), (1102, 17830), (1783, 11020), (2204, 8915), (2755, 7132), (3566, 5510)]