1266040760

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{445789}}^1$

素因数の和:445871

約数の個数: 32

約数和(自身を含む): 2888719200

約数和(自身を除く): 1622678440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 445789, 891578, 1783156, 2228945, 3566312, 4457890, 8915780, 17831560, 31651019, 63302038, 126604076, 158255095, 253208152, 316510190, 633020380, 1266040760]

約数ペア:

[(1, 1266040760), (2, 633020380), (4, 316510190), (5, 253208152), (8, 158255095), (10, 126604076), (20, 63302038), (40, 31651019), (71, 17831560), (142, 8915780), (284, 4457890), (355, 3566312), (568, 2228945), (710, 1783156), (1420, 891578), (2840, 445789)]