139890100

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{28549}}^1$

素因数の和:28577

約数の個数: 54

約数和(自身を含む): 353134950

約数和(自身を除く): 213244850

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4900, 28549, 57098, 114196, 142745, 199843, 285490, 399686, 570980, 713725, 799372, 999215, 1398901, 1427450, 1998430, 2797802, 2854900, 3996860, 4996075, 5595604, 6994505, 9992150, 13989010, 19984300, 27978020, 34972525, 69945050, 139890100]

約数ペア:

[(1, 139890100), (2, 69945050), (4, 34972525), (5, 27978020), (7, 19984300), (10, 13989010), (14, 9992150), (20, 6994505), (25, 5595604), (28, 4996075), (35, 3996860), (49, 2854900), (50, 2797802), (70, 1998430), (98, 1427450), (100, 1398901), (140, 999215), (175, 799372), (196, 713725), (245, 570980), (350, 399686), (490, 285490), (700, 199843), (980, 142745), (1225, 114196), (2450, 57098), (4900, 28549)]