20181815885

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{373}}^1\times {\mathrm{449}}^1$

素因数の和:1158

約数の個数: 64

約数和(自身を含む): 30439411200

約数和(自身を除く): 10257595315

約数列:

[1, 5, 7, 11, 35, 55, 77, 313, 373, 385, 449, 1565, 1865, 2191, 2245, 2611, 3143, 3443, 4103, 4939, 10955, 13055, 15715, 17215, 20515, 24101, 24695, 28721, 34573, 116749, 120505, 140537, 143605, 167477, 172865, 583745, 702685, 817243, 837385, 983759, 1172339, 1284239, 1545907, 1842247, 4086215, 4918795, 5861695, 6421195, 7729535, 8989673, 9211235, 10821349, 12895729, 44948365, 52420301, 54106745, 64478645, 262101505, 366942107, 576623311, 1834710535, 2883116555, 4036363177, 20181815885]

約数ペア:

[(1, 20181815885), (5, 4036363177), (7, 2883116555), (11, 1834710535), (35, 576623311), (55, 366942107), (77, 262101505), (313, 64478645), (373, 54106745), (385, 52420301), (449, 44948365), (1565, 12895729), (1865, 10821349), (2191, 9211235), (2245, 8989673), (2611, 7729535), (3143, 6421195), (3443, 5861695), (4103, 4918795), (4939, 4086215), (10955, 1842247), (13055, 1545907), (15715, 1284239), (17215, 1172339), (20515, 983759), (24101, 837385), (24695, 817243), (28721, 702685), (34573, 583745), (116749, 172865), (120505, 167477), (140537, 143605)]