77890900

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{113}}^2$

素因数の和:301

約数の個数: 54

約数和(自身を含む): 173327882

約数和(自身を除く): 95436982

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 113, 122, 226, 244, 305, 452, 565, 610, 1130, 1220, 1525, 2260, 2825, 3050, 5650, 6100, 6893, 11300, 12769, 13786, 25538, 27572, 34465, 51076, 63845, 68930, 127690, 137860, 172325, 255380, 319225, 344650, 638450, 689300, 778909, 1276900, 1557818, 3115636, 3894545, 7789090, 15578180, 19472725, 38945450, 77890900]

約数ペア:

[(1, 77890900), (2, 38945450), (4, 19472725), (5, 15578180), (10, 7789090), (20, 3894545), (25, 3115636), (50, 1557818), (61, 1276900), (100, 778909), (113, 689300), (122, 638450), (226, 344650), (244, 319225), (305, 255380), (452, 172325), (565, 137860), (610, 127690), (1130, 68930), (1220, 63845), (1525, 51076), (2260, 34465), (2825, 27572), (3050, 25538), (5650, 13786), (6100, 12769), (6893, 11300)]