12869960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:246

約数の個数: 64

約数和(自身を含む): 30481920

約数和(自身を除く): 17611960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 97, 107, 124, 155, 194, 214, 248, 310, 388, 428, 485, 535, 620, 776, 856, 970, 1070, 1240, 1940, 2140, 3007, 3317, 3880, 4280, 6014, 6634, 10379, 12028, 13268, 15035, 16585, 20758, 24056, 26536, 30070, 33170, 41516, 51895, 60140, 66340, 83032, 103790, 120280, 132680, 207580, 321749, 415160, 643498, 1286996, 1608745, 2573992, 3217490, 6434980, 12869960]

約数ペア:

[(1, 12869960), (2, 6434980), (4, 3217490), (5, 2573992), (8, 1608745), (10, 1286996), (20, 643498), (31, 415160), (40, 321749), (62, 207580), (97, 132680), (107, 120280), (124, 103790), (155, 83032), (194, 66340), (214, 60140), (248, 51895), (310, 41516), (388, 33170), (428, 30070), (485, 26536), (535, 24056), (620, 20758), (776, 16585), (856, 15035), (970, 13268), (1070, 12028), (1240, 10379), (1940, 6634), (2140, 6014), (3007, 4280), (3317, 3880)]