218126580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{519349}}^1$

素因数の和:519368

約数の個数: 48

約数和(自身を含む): 698006400

約数和(自身を除く): 479879820

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 519349, 1038698, 1558047, 2077396, 2596745, 3116094, 3635443, 5193490, 6232188, 7270886, 7790235, 10386980, 10906329, 14541772, 15580470, 18177215, 21812658, 31160940, 36354430, 43625316, 54531645, 72708860, 109063290, 218126580]

約数ペア:

[(1, 218126580), (2, 109063290), (3, 72708860), (4, 54531645), (5, 43625316), (6, 36354430), (7, 31160940), (10, 21812658), (12, 18177215), (14, 15580470), (15, 14541772), (20, 10906329), (21, 10386980), (28, 7790235), (30, 7270886), (35, 6232188), (42, 5193490), (60, 3635443), (70, 3116094), (84, 2596745), (105, 2077396), (140, 1558047), (210, 1038698), (420, 519349)]