1285153960

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{452519}}^1$

素因数の和:452601

約数の個数: 32

約数和(自身を含む): 2932329600

約数和(自身を除く): 1647175640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 452519, 905038, 1810076, 2262595, 3620152, 4525190, 9050380, 18100760, 32128849, 64257698, 128515396, 160644245, 257030792, 321288490, 642576980, 1285153960]

約数ペア:

[(1, 1285153960), (2, 642576980), (4, 321288490), (5, 257030792), (8, 160644245), (10, 128515396), (20, 64257698), (40, 32128849), (71, 18100760), (142, 9050380), (284, 4525190), (355, 3620152), (568, 2262595), (710, 1810076), (1420, 905038), (2840, 452519)]