77571920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1009}}^1$

素因数の和:1084

約数の個数: 60

約数和(自身を含む): 186544980

約数和(自身を除く): 108973060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 961, 1009, 1240, 1922, 2018, 2480, 3844, 4036, 4805, 5045, 7688, 8072, 9610, 10090, 15376, 16144, 19220, 20180, 31279, 38440, 40360, 62558, 76880, 80720, 125116, 156395, 250232, 312790, 500464, 625580, 969649, 1251160, 1939298, 2502320, 3878596, 4848245, 7757192, 9696490, 15514384, 19392980, 38785960, 77571920]

約数ペア:

[(1, 77571920), (2, 38785960), (4, 19392980), (5, 15514384), (8, 9696490), (10, 7757192), (16, 4848245), (20, 3878596), (31, 2502320), (40, 1939298), (62, 1251160), (80, 969649), (124, 625580), (155, 500464), (248, 312790), (310, 250232), (496, 156395), (620, 125116), (961, 80720), (1009, 76880), (1240, 62558), (1922, 40360), (2018, 38440), (2480, 31279), (3844, 20180), (4036, 19220), (4805, 16144), (5045, 15376), (7688, 10090), (8072, 9610)]