20195168

素因数分解:

$2^5\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1013}}^1$

素因数の和:1119

約数の個数: 48

約数和(自身を含む): 45995040

約数和(自身を除く): 25799872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 89, 112, 178, 224, 356, 623, 712, 1013, 1246, 1424, 2026, 2492, 2848, 4052, 4984, 7091, 8104, 9968, 14182, 16208, 19936, 28364, 32416, 56728, 90157, 113456, 180314, 226912, 360628, 631099, 721256, 1262198, 1442512, 2524396, 2885024, 5048792, 10097584, 20195168]

約数ペア:

[(1, 20195168), (2, 10097584), (4, 5048792), (7, 2885024), (8, 2524396), (14, 1442512), (16, 1262198), (28, 721256), (32, 631099), (56, 360628), (89, 226912), (112, 180314), (178, 113456), (224, 90157), (356, 56728), (623, 32416), (712, 28364), (1013, 19936), (1246, 16208), (1424, 14182), (2026, 9968), (2492, 8104), (2848, 7091), (4052, 4984)]