28340340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67477}}^1$

素因数の和:67496

約数の個数: 48

約数和(自身を含む): 90690432

約数和(自身を除く): 62350092

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, 67477, 134954, 202431, 269908, 337385, 404862, 472339, 674770, 809724, 944678, 1012155, 1349540, 1417017, 1889356, 2024310, 2361695, 2834034, 4048620, 4723390, 5668068, 7085085, 9446780, 14170170, 28340340]

約数ペア:

[(1, 28340340), (2, 14170170), (3, 9446780), (4, 7085085), (5, 5668068), (6, 4723390), (7, 4048620), (10, 2834034), (12, 2361695), (14, 2024310), (15, 1889356), (20, 1417017), (21, 1349540), (28, 1012155), (30, 944678), (35, 809724), (42, 674770), (60, 472339), (70, 404862), (84, 337385), (105, 269908), (140, 202431), (210, 134954), (420, 67477)]