20555264

素因数分解:

$2^9\times {\mathrm{19}}^1\times {\mathrm{2113}}^1$

素因数の和:2150

約数の個数: 40

約数和(自身を含む): 43252440

約数和(自身を除く): 22697176

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 512, 608, 1216, 2113, 2432, 4226, 4864, 8452, 9728, 16904, 33808, 40147, 67616, 80294, 135232, 160588, 270464, 321176, 540928, 642352, 1081856, 1284704, 2569408, 5138816, 10277632, 20555264]

約数ペア:

[(1, 20555264), (2, 10277632), (4, 5138816), (8, 2569408), (16, 1284704), (19, 1081856), (32, 642352), (38, 540928), (64, 321176), (76, 270464), (128, 160588), (152, 135232), (256, 80294), (304, 67616), (512, 40147), (608, 33808), (1216, 16904), (2113, 9728), (2432, 8452), (4226, 4864)]