9789220

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{1427}}^1$

素因数の和:1457

約数の個数: 48

約数和(自身を含む): 23990400

約数和(自身を除く): 14201180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1427, 1715, 2854, 3430, 5708, 6860, 7135, 9989, 14270, 19978, 28540, 39956, 49945, 69923, 99890, 139846, 199780, 279692, 349615, 489461, 699230, 978922, 1398460, 1957844, 2447305, 4894610, 9789220]

約数ペア:

[(1, 9789220), (2, 4894610), (4, 2447305), (5, 1957844), (7, 1398460), (10, 978922), (14, 699230), (20, 489461), (28, 349615), (35, 279692), (49, 199780), (70, 139846), (98, 99890), (140, 69923), (196, 49945), (245, 39956), (343, 28540), (490, 19978), (686, 14270), (980, 9989), (1372, 7135), (1427, 6860), (1715, 5708), (2854, 3430)]