61882120

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{389}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 144471600

約数和(自身を除く): 82589480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 97, 164, 194, 205, 328, 388, 389, 410, 485, 776, 778, 820, 970, 1556, 1640, 1940, 1945, 3112, 3880, 3890, 3977, 7780, 7954, 15560, 15908, 15949, 19885, 31816, 31898, 37733, 39770, 63796, 75466, 79540, 79745, 127592, 150932, 159080, 159490, 188665, 301864, 318980, 377330, 637960, 754660, 1509320, 1547053, 3094106, 6188212, 7735265, 12376424, 15470530, 30941060, 61882120]

約数ペア:

[(1, 61882120), (2, 30941060), (4, 15470530), (5, 12376424), (8, 7735265), (10, 6188212), (20, 3094106), (40, 1547053), (41, 1509320), (82, 754660), (97, 637960), (164, 377330), (194, 318980), (205, 301864), (328, 188665), (388, 159490), (389, 159080), (410, 150932), (485, 127592), (776, 79745), (778, 79540), (820, 75466), (970, 63796), (1556, 39770), (1640, 37733), (1940, 31898), (1945, 31816), (3112, 19885), (3880, 15949), (3890, 15908), (3977, 15560), (7780, 7954)]