20678550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{4447}}^1$

素因数の和:4493

約数の個数: 48

約数和(自身を含む): 52948992

約数和(自身を除く): 32270442

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 31, 50, 62, 75, 93, 150, 155, 186, 310, 465, 775, 930, 1550, 2325, 4447, 4650, 8894, 13341, 22235, 26682, 44470, 66705, 111175, 133410, 137857, 222350, 275714, 333525, 413571, 667050, 689285, 827142, 1378570, 2067855, 3446425, 4135710, 6892850, 10339275, 20678550]

約数ペア:

[(1, 20678550), (2, 10339275), (3, 6892850), (5, 4135710), (6, 3446425), (10, 2067855), (15, 1378570), (25, 827142), (30, 689285), (31, 667050), (50, 413571), (62, 333525), (75, 275714), (93, 222350), (150, 137857), (155, 133410), (186, 111175), (310, 66705), (465, 44470), (775, 26682), (930, 22235), (1550, 13341), (2325, 8894), (4447, 4650)]