19896128

素因数分解:

$2^6\times 7^1\times {\mathrm{89}}^1\times {\mathrm{499}}^1$

素因数の和:607

約数の個数: 56

約数和(自身を含む): 45720000

約数和(自身を除く): 25823872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 89, 112, 178, 224, 356, 448, 499, 623, 712, 998, 1246, 1424, 1996, 2492, 2848, 3493, 3992, 4984, 5696, 6986, 7984, 9968, 13972, 15968, 19936, 27944, 31936, 39872, 44411, 55888, 88822, 111776, 177644, 223552, 310877, 355288, 621754, 710576, 1243508, 1421152, 2487016, 2842304, 4974032, 9948064, 19896128]

約数ペア:

[(1, 19896128), (2, 9948064), (4, 4974032), (7, 2842304), (8, 2487016), (14, 1421152), (16, 1243508), (28, 710576), (32, 621754), (56, 355288), (64, 310877), (89, 223552), (112, 177644), (178, 111776), (224, 88822), (356, 55888), (448, 44411), (499, 39872), (623, 31936), (712, 27944), (998, 19936), (1246, 15968), (1424, 13972), (1996, 9968), (2492, 7984), (2848, 6986), (3493, 5696), (3992, 4984)]