66207320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{499}}^1$

素因数の和:648

約数の個数: 64

約数和(自身を含む): 155520000

約数和(自身を除く): 89312680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 107, 124, 155, 214, 248, 310, 428, 499, 535, 620, 856, 998, 1070, 1240, 1996, 2140, 2495, 3317, 3992, 4280, 4990, 6634, 9980, 13268, 15469, 16585, 19960, 26536, 30938, 33170, 53393, 61876, 66340, 77345, 106786, 123752, 132680, 154690, 213572, 266965, 309380, 427144, 533930, 618760, 1067860, 1655183, 2135720, 3310366, 6620732, 8275915, 13241464, 16551830, 33103660, 66207320]

約数ペア:

[(1, 66207320), (2, 33103660), (4, 16551830), (5, 13241464), (8, 8275915), (10, 6620732), (20, 3310366), (31, 2135720), (40, 1655183), (62, 1067860), (107, 618760), (124, 533930), (155, 427144), (214, 309380), (248, 266965), (310, 213572), (428, 154690), (499, 132680), (535, 123752), (620, 106786), (856, 77345), (998, 66340), (1070, 61876), (1240, 53393), (1996, 33170), (2140, 30938), (2495, 26536), (3317, 19960), (3992, 16585), (4280, 15469), (4990, 13268), (6634, 9980)]