20512890820

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{419}}^1\times {\mathrm{22877}}^1$

素因数の和:23412

約数の個数: 48

約数和(自身を含む): 43585335360

約数和(自身を除く): 23072444540

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 419, 428, 535, 838, 1070, 1676, 2095, 2140, 4190, 8380, 22877, 44833, 45754, 89666, 91508, 114385, 179332, 224165, 228770, 448330, 457540, 896660, 2447839, 4895678, 9585463, 9791356, 12239195, 19170926, 24478390, 38341852, 47927315, 48956780, 95854630, 191709260, 1025644541, 2051289082, 4102578164, 5128222705, 10256445410, 20512890820]

約数ペア:

[(1, 20512890820), (2, 10256445410), (4, 5128222705), (5, 4102578164), (10, 2051289082), (20, 1025644541), (107, 191709260), (214, 95854630), (419, 48956780), (428, 47927315), (535, 38341852), (838, 24478390), (1070, 19170926), (1676, 12239195), (2095, 9791356), (2140, 9585463), (4190, 4895678), (8380, 2447839), (22877, 896660), (44833, 457540), (45754, 448330), (89666, 228770), (91508, 224165), (114385, 179332)]