8440760

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2371}}^1$

素因数の和:2471

約数の個数: 32

約数和(自身を含む): 19213200

約数和(自身を除く): 10772440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 2371, 3560, 4742, 9484, 11855, 18968, 23710, 47420, 94840, 211019, 422038, 844076, 1055095, 1688152, 2110190, 4220380, 8440760]

約数ペア:

[(1, 8440760), (2, 4220380), (4, 2110190), (5, 1688152), (8, 1055095), (10, 844076), (20, 422038), (40, 211019), (89, 94840), (178, 47420), (356, 23710), (445, 18968), (712, 11855), (890, 9484), (1780, 4742), (2371, 3560)]