1428140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^2$

素因数の和:218

約数の個数: 36

約数和(自身を含む): 3461808

約数和(自身を除く): 2033668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 707, 1010, 1414, 2020, 2828, 3535, 7070, 10201, 14140, 20402, 40804, 51005, 71407, 102010, 142814, 204020, 285628, 357035, 714070, 1428140]

約数ペア:

[(1, 1428140), (2, 714070), (4, 357035), (5, 285628), (7, 204020), (10, 142814), (14, 102010), (20, 71407), (28, 51005), (35, 40804), (70, 20402), (101, 14140), (140, 10201), (202, 7070), (404, 3535), (505, 2828), (707, 2020), (1010, 1414)]