31599280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20789}}^1$

素因数の和:20821

約数の個数: 40

約数和(自身を含む): 77338800

約数和(自身を除く): 45739520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 20789, 41578, 83156, 103945, 166312, 207890, 332624, 394991, 415780, 789982, 831560, 1579964, 1663120, 1974955, 3159928, 3949910, 6319856, 7899820, 15799640, 31599280]

約数ペア:

[(1, 31599280), (2, 15799640), (4, 7899820), (5, 6319856), (8, 3949910), (10, 3159928), (16, 1974955), (19, 1663120), (20, 1579964), (38, 831560), (40, 789982), (76, 415780), (80, 394991), (95, 332624), (152, 207890), (190, 166312), (304, 103945), (380, 83156), (760, 41578), (1520, 20789)]