77275220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{1783}}^1$

素因数の和:2000

約数の個数: 48

約数和(自身を含む): 178028928

約数和(自身を除く): 100753708

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 197, 220, 394, 788, 985, 1783, 1970, 2167, 3566, 3940, 4334, 7132, 8668, 8915, 10835, 17830, 19613, 21670, 35660, 39226, 43340, 78452, 98065, 196130, 351251, 392260, 702502, 1405004, 1756255, 3512510, 3863761, 7025020, 7727522, 15455044, 19318805, 38637610, 77275220]

約数ペア:

[(1, 77275220), (2, 38637610), (4, 19318805), (5, 15455044), (10, 7727522), (11, 7025020), (20, 3863761), (22, 3512510), (44, 1756255), (55, 1405004), (110, 702502), (197, 392260), (220, 351251), (394, 196130), (788, 98065), (985, 78452), (1783, 43340), (1970, 39226), (2167, 35660), (3566, 21670), (3940, 19613), (4334, 17830), (7132, 10835), (8668, 8915)]