2019919360

素因数分解:

$2^9\times 5^1\times {\mathrm{789031}}^1$

素因数の和:789054

約数の個数: 40

約数和(自身を含む): 4843078416

約数和(自身を除く): 2823159056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 789031, 1578062, 3156124, 3945155, 6312248, 7890310, 12624496, 15780620, 25248992, 31561240, 50497984, 63122480, 100995968, 126244960, 201991936, 252489920, 403983872, 504979840, 1009959680, 2019919360]

約数ペア:

[(1, 2019919360), (2, 1009959680), (4, 504979840), (5, 403983872), (8, 252489920), (10, 201991936), (16, 126244960), (20, 100995968), (32, 63122480), (40, 50497984), (64, 31561240), (80, 25248992), (128, 15780620), (160, 12624496), (256, 7890310), (320, 6312248), (512, 3945155), (640, 3156124), (1280, 1578062), (2560, 789031)]