1255338420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{2988901}}^1$

素因数の和:2988920

約数の個数: 48

約数和(自身を含む): 4017084288

約数和(自身を除く): 2761745868

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, 2988901, 5977802, 8966703, 11955604, 14944505, 17933406, 20922307, 29889010, 35866812, 41844614, 44833515, 59778020, 62766921, 83689228, 89667030, 104611535, 125533842, 179334060, 209223070, 251067684, 313834605, 418446140, 627669210, 1255338420]

約数ペア:

[(1, 1255338420), (2, 627669210), (3, 418446140), (4, 313834605), (5, 251067684), (6, 209223070), (7, 179334060), (10, 125533842), (12, 104611535), (14, 89667030), (15, 83689228), (20, 62766921), (21, 59778020), (28, 44833515), (30, 41844614), (35, 35866812), (42, 29889010), (60, 20922307), (70, 17933406), (84, 14944505), (105, 11955604), (140, 8966703), (210, 5977802), (420, 2988901)]