209629140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{499117}}^1$

素因数の和:499136

約数の個数: 48

約数和(自身を含む): 670814592

約数和(自身を除く): 461185452

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, 499117, 998234, 1497351, 1996468, 2495585, 2994702, 3493819, 4991170, 5989404, 6987638, 7486755, 9982340, 10481457, 13975276, 14973510, 17469095, 20962914, 29947020, 34938190, 41925828, 52407285, 69876380, 104814570, 209629140]

約数ペア:

[(1, 209629140), (2, 104814570), (3, 69876380), (4, 52407285), (5, 41925828), (6, 34938190), (7, 29947020), (10, 20962914), (12, 17469095), (14, 14973510), (15, 13975276), (20, 10481457), (21, 9982340), (28, 7486755), (30, 6987638), (35, 5989404), (42, 4991170), (60, 3493819), (70, 2994702), (84, 2495585), (105, 1996468), (140, 1497351), (210, 998234), (420, 499117)]