8991560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{11831}}^1$

素因数の和:11861

約数の個数: 32

約数和(自身を含む): 21297600

約数和(自身を除く): 12306040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 11831, 23662, 47324, 59155, 94648, 118310, 224789, 236620, 449578, 473240, 899156, 1123945, 1798312, 2247890, 4495780, 8991560]

約数ペア:

[(1, 8991560), (2, 4495780), (4, 2247890), (5, 1798312), (8, 1123945), (10, 899156), (19, 473240), (20, 449578), (38, 236620), (40, 224789), (76, 118310), (95, 94648), (152, 59155), (190, 47324), (380, 23662), (760, 11831)]