205849140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{490117}}^1$

素因数の和:490136

約数の個数: 48

約数和(自身を含む): 658718592

約数和(自身を除く): 452869452

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, 490117, 980234, 1470351, 1960468, 2450585, 2940702, 3430819, 4901170, 5881404, 6861638, 7351755, 9802340, 10292457, 13723276, 14703510, 17154095, 20584914, 29407020, 34308190, 41169828, 51462285, 68616380, 102924570, 205849140]

約数ペア:

[(1, 205849140), (2, 102924570), (3, 68616380), (4, 51462285), (5, 41169828), (6, 34308190), (7, 29407020), (10, 20584914), (12, 17154095), (14, 14703510), (15, 13723276), (20, 10292457), (21, 9802340), (28, 7351755), (30, 6861638), (35, 5881404), (42, 4901170), (60, 3430819), (70, 2940702), (84, 2450585), (105, 1960468), (140, 1470351), (210, 980234), (420, 490117)]