289089220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{294989}}^1$

素因数の和:295012

約数の個数: 36

約数和(自身を含む): 706206060

約数和(自身を除く): 417116840

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 294989, 589978, 1179956, 1474945, 2064923, 2949890, 4129846, 5899780, 8259692, 10324615, 14454461, 20649230, 28908922, 41298460, 57817844, 72272305, 144544610, 289089220]

約数ペア:

[(1, 289089220), (2, 144544610), (4, 72272305), (5, 57817844), (7, 41298460), (10, 28908922), (14, 20649230), (20, 14454461), (28, 10324615), (35, 8259692), (49, 5899780), (70, 4129846), (98, 2949890), (140, 2064923), (196, 1474945), (245, 1179956), (490, 589978), (980, 294989)]