1390452280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{991}}^1\times {\mathrm{5011}}^1$

素因数の和:6020

約数の個数: 64

約数和(自身を含む): 3579770880

約数和(自身を除く): 2189318600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 991, 1982, 3964, 4955, 5011, 6937, 7928, 9910, 10022, 13874, 19820, 20044, 25055, 27748, 34685, 35077, 39640, 40088, 50110, 55496, 69370, 70154, 100220, 138740, 140308, 175385, 200440, 277480, 280616, 350770, 701540, 1403080, 4965901, 9931802, 19863604, 24829505, 34761307, 39727208, 49659010, 69522614, 99318020, 139045228, 173806535, 198636040, 278090456, 347613070, 695226140, 1390452280]

約数ペア:

[(1, 1390452280), (2, 695226140), (4, 347613070), (5, 278090456), (7, 198636040), (8, 173806535), (10, 139045228), (14, 99318020), (20, 69522614), (28, 49659010), (35, 39727208), (40, 34761307), (56, 24829505), (70, 19863604), (140, 9931802), (280, 4965901), (991, 1403080), (1982, 701540), (3964, 350770), (4955, 280616), (5011, 277480), (6937, 200440), (7928, 175385), (9910, 140308), (10022, 138740), (13874, 100220), (19820, 70154), (20044, 69370), (25055, 55496), (27748, 50110), (34685, 40088), (35077, 39640)]