216790980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{516169}}^1$

素因数の和:516188

約数の個数: 48

約数和(自身を含む): 693732480

約数和(自身を除く): 476941500

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, 516169, 1032338, 1548507, 2064676, 2580845, 3097014, 3613183, 5161690, 6194028, 7226366, 7742535, 10323380, 10839549, 14452732, 15485070, 18065915, 21679098, 30970140, 36131830, 43358196, 54197745, 72263660, 108395490, 216790980]

約数ペア:

[(1, 216790980), (2, 108395490), (3, 72263660), (4, 54197745), (5, 43358196), (6, 36131830), (7, 30970140), (10, 21679098), (12, 18065915), (14, 15485070), (15, 14452732), (20, 10839549), (21, 10323380), (28, 7742535), (30, 7226366), (35, 6194028), (42, 5161690), (60, 3613183), (70, 3097014), (84, 2580845), (105, 2064676), (140, 1548507), (210, 1032338), (420, 516169)]